diff --git a/tjreports/administrator/controller.php b/tjreports/administrator/controller.php
index 3202bf7..ef23faa 100755
--- a/tjreports/administrator/controller.php
+++ b/tjreports/administrator/controller.php
@@ -9,13 +9,15 @@
  */
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Controller\BaseController;
+use Joomla\CMS\Factory;
 
 /**
  * Class TjreportsController
  *
  * @since  1.6
  */
-class TjreportsController extends JControllerLegacy
+class TjreportsController extends BaseController
 {
 	/**
 	 * Method to display a view.
@@ -29,8 +31,8 @@ class TjreportsController extends JControllerLegacy
 	 */
 	public function display($cachable = false, $urlparams = false)
 	{
-		$view = JFactory::getApplication()->input->getCmd('view', 'tjreports');
-		JFactory::getApplication()->input->set('view', $view);
+		$view = Factory::getApplication()->input->getCmd('view', 'tjreports');
+		Factory::getApplication()->input->set('view', $view);
 
 		parent::display($cachable, $urlparams);
 
diff --git a/tjreports/administrator/controllers/indexer.php b/tjreports/administrator/controllers/indexer.php
index cedd16c..703af35 100644
--- a/tjreports/administrator/controllers/indexer.php
+++ b/tjreports/administrator/controllers/indexer.php
@@ -33,7 +33,7 @@ public function createTable()
 	{
 		$app = Factory::getApplication();
 
-		if ($app->isSite())
+		if ($app->isClient('site'))
 		{
 			echo 'Error creating DB table - Need to run this in admin area';
 
diff --git a/tjreports/administrator/controllers/tjreport.json.php b/tjreports/administrator/controllers/tjreport.json.php
index 5829bcc..44e0199 100644
--- a/tjreports/administrator/controllers/tjreport.json.php
+++ b/tjreports/administrator/controllers/tjreport.json.php
@@ -8,6 +8,9 @@
  */
 // No direct access to this file
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Controller\FormController;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Response\JsonResponse;
 
 jimport('joomla.application.component.controllerform');
 /**
@@ -17,7 +20,7 @@
  * @subpackage  com_tjreports
  * @since       0.0.1
  */
-class TjreportsControllerTjreport extends JControllerForm
+class TjreportsControllerTjreport extends FormController
 {
 	/**
 	 * Contructor
@@ -38,7 +41,7 @@ public function getplugins()
 	{
 		try
 		{
-			$app     = JFactory::getApplication();
+			$app     = Factory::getApplication();
 			$jinput  = $app->input;
 			$jform   = $jinput->post->get('jform', array(), 'ARRAY');
 			$client = $jform['client'];
@@ -48,11 +51,11 @@ public function getplugins()
 			$model = $this->getModel('tjreport');
 			$reports = $model->getClientPlugins($client, $id, $userid);
 
-			echo new JResponseJson($reports);
+			echo new JsonResponse($reports);
 		}
 		catch (Exception $e)
 		{
-			echo new JResponseJson($e);
+			echo new JsonResponse($e);
 		}
 	}
 
@@ -66,7 +69,7 @@ public function getparams()
 	{
 		try
 		{
-			$app     = JFactory::getApplication();
+			$app     = Factory::getApplication();
 			$jinput  = $app->input;
 			$jform   = $jinput->post->get('jform', array(), 'ARRAY');
 			$plugin = $parent = null;
@@ -84,11 +87,11 @@ public function getparams()
 			$model   = $this->getModel('tjreport');
 			$report  = $model->getReportPluginData($parent, $plugin);
 
-			echo new JResponseJson($report);
+			echo new JsonResponse($report);
 		}
 		catch (Exception $e)
 		{
-			echo new JResponseJson($e);
+			echo new JsonResponse($e);
 		}
 	}
 }
diff --git a/tjreports/administrator/controllers/tjreport.php b/tjreports/administrator/controllers/tjreport.php
index ec3818b..d0c5662 100644
--- a/tjreports/administrator/controllers/tjreport.php
+++ b/tjreports/administrator/controllers/tjreport.php
@@ -8,6 +8,8 @@
  */
 // No direct access to this file
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Controller\FormController;
+use Joomla\CMS\Factory;
 
 jimport('joomla.application.component.controllerform');
 /**
@@ -17,7 +19,7 @@
  * @subpackage  com_tjreports
  * @since       0.0.1
  */
-class TjreportsControllerTjreport extends JControllerForm
+class TjreportsControllerTjreport extends FormController
 {
 	/**
 	 * Contructor
@@ -40,7 +42,7 @@ public function __construct()
 	 */
 	public function setRedirect($url, $msg = null,$type = null)
 	{
-		$extension = JFactory::getApplication()->input->get('extension', '', 'word');
+		$extension = Factory::getApplication()->input->get('extension', '', 'word');
 
 		if ($extension)
 		{
@@ -61,7 +63,7 @@ public function setRedirect($url, $msg = null,$type = null)
 	 */
 	protected function allowAdd($data = array())
 	{
-		$user       = JFactory::getUser();
+		$user       = Factory::getUser();
 
 		if ($user->authorise('core.create', 'com_tjreports'))
 		{
@@ -86,7 +88,7 @@ protected function allowAdd($data = array())
 	 */
 	protected function allowEdit($data = array(), $key = 'id')
 	{
-		$user       = JFactory::getUser();
+		$user       = Factory::getUser();
 
 		if ($user->authorise('core.edit', 'com_tjreports'))
 		{
diff --git a/tjreports/administrator/controllers/tjreports.php b/tjreports/administrator/controllers/tjreports.php
index 4652171..1cc08dd 100644
--- a/tjreports/administrator/controllers/tjreports.php
+++ b/tjreports/administrator/controllers/tjreports.php
@@ -8,12 +8,17 @@
  */
 // No direct access to this file
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Controller\AdminController;
+use Joomla\CMS\Factory;
+use Joomla\CMS\MVC\Model\BaseDatabaseModel;
+use Joomla\CMS\Table\Table;
+use Joomla\CMS\Language\Text;
 /**
  * com tjreports Controller
  *
  * @since  0.0.1
  */
-class TjreportsControllerTjreports extends JControllerAdmin
+class TjreportsControllerTjreports extends AdminController
 {
 	/**
 	 * Proxy for getModel.
@@ -46,7 +51,7 @@ public function getModel($name = 'Tjreport', $prefix = 'TjreportsModel', $config
 	*/
 	public function setRedirect($url, $msg = null,$type = null)
 	{
-		$extension = JFactory::getApplication()->input->get('extension', '', 'word');
+		$extension = Factory::getApplication()->input->get('extension', '', 'word');
 
 		if ($extension)
 		{
@@ -65,10 +70,10 @@ public function setRedirect($url, $msg = null,$type = null)
 	 */
 	public function discover()
 	{
-		JModelLegacy::addIncludePath(JPATH_ADMINISTRATOR . '/components/com_tjreports/models');
-		JTable::addIncludePath(JPATH_ROOT . '/administrator/components/com_tjreports/tables');
+		BaseDatabaseModel::addIncludePath(JPATH_ADMINISTRATOR . '/components/com_tjreports/models');
+		Table::addIncludePath(JPATH_ROOT . '/administrator/components/com_tjreports/tables');
 
-		$db    = JFactory::getDbo();
+		$db    = Factory::getDbo();
 		$query = $db->getQuery(true);
 		$query->select('element');
 		$query->from($db->quoteName('#__extensions'));
@@ -89,9 +94,9 @@ public function discover()
 
 		foreach ($discoverPlugins as $value)
 		{
-			$model = JModelLegacy::getInstance('Reports', 'TjreportsModel');
+			$model = BaseDatabaseModel::getInstance('Reports', 'TjreportsModel');
 			$pluginName = $value;
-			$reportTable = JTable::getInstance('Tjreport', 'TjreportsTable');
+			$reportTable = Table::getInstance('Tjreport', 'TjreportsTable');
 			$details = $model->getPluginInstallationDetail($pluginName);
 			$reportTable->load(array('plugin' => $pluginName, 'userid' => 0));
 
@@ -110,11 +115,11 @@ public function discover()
 			}
 		}
 
-		$message = JText::_('COM_TJREPORTS_NOTHING_TO_DISCOVER_PLUGINS');
+		$message = Text::_('COM_TJREPORTS_NOTHING_TO_DISCOVER_PLUGINS');
 
 		if ($count > 0)
 		{
-			$message = JText::sprintf(JText::_('COM_TJREPORTS_DISCOVER_NEW_PLUGINS'), $count);
+			$message = Text::sprintf(Text::_('COM_TJREPORTS_DISCOVER_NEW_PLUGINS'), $count);
 		}
 
 		$this->setRedirect('index.php?option=com_tjreports', $message);
diff --git a/tjreports/administrator/helpers/tjreports.php b/tjreports/administrator/helpers/tjreports.php
index 8b7b8c0..52d1f4b 100644
--- a/tjreports/administrator/helpers/tjreports.php
+++ b/tjreports/administrator/helpers/tjreports.php
@@ -9,13 +9,17 @@
  */
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\Helper\ContentHelper;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Filesystem\Path;
+use Joomla\CMS\Filesystem\File;
 
 /**
  * Cp helper.
  *
  * @since  1.6
  */
-class TjreportsHelper extends JHelperContent
+class TjreportsHelper extends ContentHelper
 {
 	/**
 	 * Configure the Linkbar.
@@ -26,17 +30,17 @@ class TjreportsHelper extends JHelperContent
 	 */
 	public static function addSubmenu($view='')
 	{
-		$client = JFactory::getApplication()->input->get('client', '', 'STRING');
+		$client = Factory::getApplication()->input->get('client', '', 'STRING');
 		$full_client = $client;
 
 		// Set ordering.
-		$mainframe = JFactory::getApplication();
+		$mainframe = Factory::getApplication();
 		$full_client = explode('.', $full_client);
 
 		// Eg com_jgive
 		$component = $full_client[0];
 		$eName = str_replace('com_', '', $component);
-		$file = JPath::clean(JPATH_ADMINISTRATOR . '/components/' . $component . '/helpers/' . $eName . '.php');
+		$file = Path::clean(JPATH_ADMINISTRATOR . '/components/' . $component . '/helpers/' . $eName . '.php');
 
 		if (file_exists($file))
 		{
@@ -49,14 +53,14 @@ public static function addSubmenu($view='')
 			{
 				if (is_callable(array($cName, 'addSubmenu')))
 				{
-					$lang = JFactory::getLanguage();
+					$lang = Factory::getLanguage();
 
 					// Loading language file from the administrator/language directory then
 					// Loading language file from the administrator/components/*extension*/language directory
 					$lang->load($component, JPATH_BASE, null, false, false)
-					|| $lang->load($component, JPath::clean(JPATH_ADMINISTRATOR . '/components/' . $component), null, false, false)
+					|| $lang->load($component, Path::clean(JPATH_ADMINISTRATOR . '/components/' . $component), null, false, false)
 					|| $lang->load($component, JPATH_BASE, $lang->getDefault(), false, false)
-					|| $lang->load($component, JPath::clean(JPATH_ADMINISTRATOR . '/components/' . $component), $lang->getDefault(), false, false);
+					|| $lang->load($component, Path::clean(JPATH_ADMINISTRATOR . '/components/' . $component), $lang->getDefault(), false, false);
 
 					// Call_user_func(array($cName, 'addSubmenu'), 'categories' . (isset($section) ? '.' . $section : ''));
 					call_user_func(array($cName, 'addSubmenu'), $view . (isset($section) ? '.' . $section : ''));
@@ -98,7 +102,7 @@ public static function getActions($component = 'com_tjreports', $section = '', $
 	 */
 	public function getViewpath($component, $viewname, $layout = 'default', $searchTmpPath = 'SITE', $useViewpath = 'SITE')
 	{
-		$app = JFactory::getApplication();
+		$app = Factory::getApplication();
 
 		$searchTmpPath = ($searchTmpPath == 'SITE') ? JPATH_SITE : JPATH_ADMINISTRATOR;
 		$useViewpath   = ($useViewpath == 'SITE') ? JPATH_SITE : JPATH_ADMINISTRATOR;
@@ -107,7 +111,7 @@ public function getViewpath($component, $viewname, $layout = 'default', $searchT
 
 		$override = $searchTmpPath . '/' . 'templates' . '/' . $app->getTemplate() . '/' . 'html' . '/' . $component . '/' . $viewname . '/' . $layoutname;
 
-		if (JFile::exists($override))
+		if (File::exists($override))
 		{
 			return $view = $override;
 		}
diff --git a/tjreports/administrator/models/fields/createdby.php b/tjreports/administrator/models/fields/createdby.php
index aa783f2..d44434d 100755
--- a/tjreports/administrator/models/fields/createdby.php
+++ b/tjreports/administrator/models/fields/createdby.php
@@ -8,6 +8,8 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Factory;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +18,7 @@
  *
  * @since  1.6
  */
-class JFormFieldCreatedby extends JFormField
+class FormFieldCreatedby extends FormField
 {
 	/**
 	 * The form field type.
@@ -43,11 +45,11 @@ protected function getInput()
 
 		if ($user_id)
 		{
-			$user = JFactory::getUser($user_id);
+			$user = Factory::getUser($user_id);
 		}
 		else
 		{
-			$user   = JFactory::getUser();
+			$user   = Factory::getUser();
 			$html[] = '<input type="hidden" name="' . $this->name . '" value="' . $user->id . '" />';
 		}
 
diff --git a/tjreports/administrator/models/fields/custom_field.php b/tjreports/administrator/models/fields/custom_field.php
index 668fc7c..4ea56f3 100755
--- a/tjreports/administrator/models/fields/custom_field.php
+++ b/tjreports/administrator/models/fields/custom_field.php
@@ -8,6 +8,7 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
 
 jimport('joomla.html.html');
 jimport('joomla.form.formfield');
@@ -17,7 +18,7 @@
  *
  * @since  1.6
  */
-class JFormFieldCustomField extends JFormField
+class FormFieldCustomField extends FormField
 {
 	/**
 	 * The form field type.
diff --git a/tjreports/administrator/models/fields/filemultiple.php b/tjreports/administrator/models/fields/filemultiple.php
index aa26b53..f581c50 100755
--- a/tjreports/administrator/models/fields/filemultiple.php
+++ b/tjreports/administrator/models/fields/filemultiple.php
@@ -8,6 +8,7 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +17,7 @@
  *
  * @since  1.6
  */
-class JFormFieldFileMultiple extends JFormField
+class FormFieldFileMultiple extends FormField
 {
 	/**
 	 * The form field type.
diff --git a/tjreports/administrator/models/fields/foreignkey.php b/tjreports/administrator/models/fields/foreignkey.php
index dbe8c39..e021111 100755
--- a/tjreports/administrator/models/fields/foreignkey.php
+++ b/tjreports/administrator/models/fields/foreignkey.php
@@ -8,6 +8,9 @@
  * @license    GNU General Public License version 2 or later; see LICENSE.txt
  */
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Factory;
+use Joomla\CMS\HTML\HTMLHelper;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +19,7 @@
  *
  * @since  1.6
  */
-class JFormFieldForeignKey extends JFormField
+class FormFieldForeignKey extends FormField
 {
 	/**
 	 * The form field type.
@@ -64,7 +67,7 @@ protected function getInput()
 		$fk_value = '';
 
 		// Load all the field options
-		$db    = JFactory::getDbo();
+		$db    = Factory::getDbo();
 		$query = $db->getQuery(true);
 
 		// Support for multiple fields on fk_values
@@ -113,7 +116,7 @@ protected function getInput()
 				// Iterate through all the results
 				foreach ($results as $result)
 				{
-					$options[] = JHtml::_('select.option', $result->{$this->key_field}, $result->{$this->value_field});
+					$options[] = HTMLHelper::_('select.option', $result->{$this->key_field}, $result->{$this->value_field});
 				}
 
 				$value = $this->value;
@@ -136,10 +139,10 @@ protected function getInput()
 				}
 				else
 				{
-					array_unshift($options, JHtml::_('select.option', '', ''));
+					array_unshift($options, HTMLHelper::_('select.option', '', ''));
 				}
 
-				$html = JHtml::_('select.genericlist', $options, $this->name, $input_options, 'value', 'text', $value, $this->id);
+				$html = HTMLHelper::_('select.genericlist', $options, $this->name, $input_options, 'value', 'text', $value, $this->id);
 				break;
 		}
 
diff --git a/tjreports/administrator/models/fields/modifiedby.php b/tjreports/administrator/models/fields/modifiedby.php
index 8f2133e..eafef97 100755
--- a/tjreports/administrator/models/fields/modifiedby.php
+++ b/tjreports/administrator/models/fields/modifiedby.php
@@ -8,6 +8,8 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Factory;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +18,7 @@
  *
  * @since  1.6
  */
-class JFormFieldModifiedby extends JFormField
+class FormFieldModifiedby extends FormField
 {
 	/**
 	 * The form field type.
@@ -37,7 +39,7 @@ protected function getInput()
 	{
 		// Initialize variables.
 		$html   = array();
-		$user   = JFactory::getUser();
+		$user   = Factory::getUser();
 		$html[] = '<input type="hidden" name="' . $this->name . '" value="' . $user->id . '" />';
 		$html[] = "<div>" . $user->name . " (" . $user->username . ")</div>";
 
diff --git a/tjreports/administrator/models/fields/timecreated.php b/tjreports/administrator/models/fields/timecreated.php
index 158ee51..3e6f984 100755
--- a/tjreports/administrator/models/fields/timecreated.php
+++ b/tjreports/administrator/models/fields/timecreated.php
@@ -8,6 +8,10 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Date\Date;
+use Joomla\CMS\Language\Text;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +20,7 @@
  *
  * @since  1.6
  */
-class JFormFieldTimecreated extends JFormField
+class FormFieldTimecreated extends FormField
 {
 	/**
 	 * The form field type.
@@ -42,7 +46,7 @@ protected function getInput()
 
 		if (!strtotime($time_created))
 		{
-			$time_created = JFactory::getDate('now', JFactory::getConfig()->get('offset'))->toSql(true);
+			$time_created = Factory::getDate('now', Factory::getConfig()->get('offset'))->toSql(true);
 			$html[]       = '<input type="hidden" name="' . $this->name . '" value="' . $time_created . '" />';
 		}
 
@@ -50,8 +54,8 @@ protected function getInput()
 
 		if ($hidden == null || !$hidden)
 		{
-			$jdate       = new JDate($time_created);
-			$pretty_date = $jdate->format(JText::_('DATE_FORMAT_LC2'));
+			$jdate       = new Date($time_created);
+			$pretty_date = $jdate->format(Text::_('DATE_FORMAT_LC2'));
 			$html[]      = "<div>" . $pretty_date . "</div>";
 		}
 
diff --git a/tjreports/administrator/models/fields/timeupdated.php b/tjreports/administrator/models/fields/timeupdated.php
index 048c280..7aa646c 100755
--- a/tjreports/administrator/models/fields/timeupdated.php
+++ b/tjreports/administrator/models/fields/timeupdated.php
@@ -8,6 +8,10 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Date\Date;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Factory;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +20,7 @@
  *
  * @since  1.6
  */
-class JFormFieldTimeupdated extends JFormField
+class FormFieldTimeupdated extends FormField
 {
 	/**
 	 * The form field type.
@@ -49,13 +53,13 @@ protected function getInput()
 			}
 			else
 			{
-				$jdate       = new JDate($old_time_updated);
-				$pretty_date = $jdate->format(JText::_('DATE_FORMAT_LC2'));
+				$jdate       = new Date($old_time_updated);
+				$pretty_date = $jdate->format(Text::_('DATE_FORMAT_LC2'));
 				$html[]      = "<div>" . $pretty_date . "</div>";
 			}
 		}
 
-		$time_updated = JFactory::getDate('now', JFactory::getConfig()->get('offset'))->toSql(true);
+		$time_updated = Factory::getDate('now', Factory::getConfig()->get('offset'))->toSql(true);
 		$html[]       = '<input type="hidden" name="' . $this->name . '" value="' . $time_updated . '" />';
 
 		return implode($html);
diff --git a/tjreports/administrator/models/fields/users.php b/tjreports/administrator/models/fields/users.php
index 3de834f..7496f8c 100755
--- a/tjreports/administrator/models/fields/users.php
+++ b/tjreports/administrator/models/fields/users.php
@@ -9,6 +9,10 @@
 
 // No direct access.
 defined('_JEXEC') or die();
+use Joomla\CMS\Form\FormHelper;
+use Joomla\CMS\Form\Field\UserField;
+use Joomla\CMS\Factory;
+use Joomla\CMS\HTML\HTMLHelper;
 
 JFormHelper::loadFieldClass('list');
 
@@ -17,7 +21,7 @@
  *
  * @since  1.0.0
  */
-class JFormFieldUsers extends JFormFieldList
+class UserFields extends FormFieldList
 {
 	/**
 	 * The form field type.
@@ -44,7 +48,7 @@ class JFormFieldUsers extends JFormFieldList
 	 */
 	protected function getOptions()
 	{
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 		$query = $db->getQuery(true);
 
 		// Select the required fields from the table.
@@ -61,7 +65,7 @@ protected function getOptions()
 
 		foreach ($allUsers as $u)
 		{
-			$options[] = JHtml::_('select.option', $u->id, $u->name);
+			$options[] = HTMLHelper::_('select.option', $u->id, $u->name);
 		}
 
 		if (!$this->loadExternally)
diff --git a/tjreports/administrator/models/indexer.php b/tjreports/administrator/models/indexer.php
index 79a6d64..17e77a1 100644
--- a/tjreports/administrator/models/indexer.php
+++ b/tjreports/administrator/models/indexer.php
@@ -10,6 +10,7 @@
 
 // No direct access.
 defined('_JEXEC') or die('Restricted access');
+use Joomla\CMS\Response\JsonResponse;
 
 use Joomla\CMS\Factory;
 use Joomla\CMS\MVC\Model\BaseDatabaseModel;
@@ -77,7 +78,7 @@ public function createTable($context)
 			if ($db->execute())
 			{
 				$msg = 'DB table - ' . $db->quoteName($this->customFieldsTable) . ' created successfully';
-				echo new JResponseJson($msg);
+				echo new JsonResponse($msg);
 
 				return true;
 			}
@@ -88,7 +89,7 @@ public function createTable($context)
 		}
 		catch (Exception $e)
 		{
-			echo new JResponseJson(null, $e->getMessage(), true);
+			echo new JsonResponse(null, $e->getMessage(), true);
 		}
 	}
 }
diff --git a/tjreports/administrator/models/tjreport.php b/tjreports/administrator/models/tjreport.php
index 51b93e5..63cdf5b 100644
--- a/tjreports/administrator/models/tjreport.php
+++ b/tjreports/administrator/models/tjreport.php
@@ -8,12 +8,16 @@
  */
 // No direct access to this file
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Model\AdminModel;
+use Joomla\CMS\Table\Table;
+use Joomla\CMS\Factory;
+use Joomla\CMS\MVC\Model\BaseDatabaseModel;
 /**
  * jticketing Model
  *
  * @since  0.0.1
  */
-class TjreportsModelTjreport extends JModelAdmin
+class TjreportsModelTjreport extends AdminModel
 {
 	/**
 	 * Constructor.
@@ -43,7 +47,7 @@ public function __construct($config = array())
 	 */
 	public function getTable($type = 'Tjreport', $prefix = 'TjreportsTable', $config = array())
 	{
-		return JTable::getInstance($type, $prefix, $config);
+		return Table::getInstance($type, $prefix, $config);
 	}
 
 	/**
@@ -86,7 +90,7 @@ public function getForm($data = array(), $loadData = true)
 	protected function loadFormData()
 	{
 		// Check the session for previously entered form data.
-		$data = JFactory::getApplication()->getUserState(
+		$data = Factory::getApplication()->getUserState(
 			'com_tjreports.edit.tjreports.data',
 			array()
 		);
@@ -117,7 +121,7 @@ protected function loadFormData()
 	 */
 	public function getClientPlugins($client, $currentId = 0, $userId = 0)
 	{
-		$db    = JFactory::getDbo();
+		$db    = Factory::getDbo();
 		$query = $db->getQuery(true);
 		$query->select('r.*,r.id as value,r.title as text');
 		$query->from('#__tj_reports as r');
@@ -152,7 +156,7 @@ public function getReportPluginData($pluginId, $pluginName = null)
 	{
 		if ($pluginId)
 		{
-			$db = JFactory::getDbo();
+			$db = Factory::getDbo();
 			$query = $db->getQuery(true);
 			$query->select('r.*');
 			$query->from('#__tj_reports as r');
@@ -170,8 +174,8 @@ public function getReportPluginData($pluginId, $pluginName = null)
 
 		if ($pluginName || (empty($report->param) && !empty($report->plugin)))
 		{
-			JModelLegacy::addIncludePath(JPATH_SITE . '/plugins/tjreports/' . $pluginName);
-			$plgModel = JModelLegacy::getInstance($pluginName, 'TjreportsModel');
+			BaseDatabaseModel::addIncludePath(JPATH_SITE . '/plugins/tjreports/' . $pluginName);
+			$plgModel = BaseDatabaseModel::getInstance($pluginName, 'TjreportsModel');
 
 			$defaultColToHide = $plgModel->getState('defaultColToHide');
 
@@ -224,7 +228,7 @@ public function getReportPluginData($pluginId, $pluginName = null)
 	protected function prepareTable($table)
 	{
 		jimport('joomla.filter.output');
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 		$query = $db->getQuery(true);
 
 		if (empty($table->id))
diff --git a/tjreports/administrator/models/tjreports.php b/tjreports/administrator/models/tjreports.php
index 74a71ce..4af05a3 100644
--- a/tjreports/administrator/models/tjreports.php
+++ b/tjreports/administrator/models/tjreports.php
@@ -8,12 +8,14 @@
  */
 // No direct access to this file
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Model\ListModel;
+use Joomla\CMS\Factory;
 /**
  * Tjreportslist Model
  *
  * @since  0.0.1
  */
-class TjreportsModelTjreports extends JModelList
+class TjreportsModelTjreports extends ListModel
 {
 	/**
 	 * Constructor.
@@ -48,7 +50,7 @@ public function __construct($config = array())
 	protected function getListQuery()
 	{
 		// Initialize variables.
-		$db    = JFactory::getDbo();
+		$db    = Factory::getDbo();
 		$query = $db->getQuery(true);
 
 		// Create the base select statement.
@@ -107,7 +109,7 @@ protected function getListQuery()
 	public function getItems()
 	{
 		$db = $this->getDbo();
-		$app = JFactory::getApplication();
+		$app = Factory::getApplication();
 		$input = $app->input;
 		$items = parent::getItems();
 
@@ -129,7 +131,7 @@ public function getItems()
 	protected function populateState($ordering = null, $direction = null)
 	{
 		// Initialise variables.
-		$app = JFactory::getApplication();
+		$app = Factory::getApplication();
 
 		// Set ordering.
 		$orderCol = $app->getUserStateFromRequest($this->context . '.filter_order', 'filter_order');
@@ -162,7 +164,7 @@ protected function populateState($ordering = null, $direction = null)
 		$this->setState('filter.client', $client);
 
 		// Bug fix For a list layout
-		$jinput = JFactory::getApplication()->input;
+		$jinput = Factory::getApplication()->input;
 		$layout = $jinput->get('layout', '', 'STRING');
 	}
 }
diff --git a/tjreports/administrator/tables/tjreport.php b/tjreports/administrator/tables/tjreport.php
index 3b18c0f..f00d380 100644
--- a/tjreports/administrator/tables/tjreport.php
+++ b/tjreports/administrator/tables/tjreport.php
@@ -8,12 +8,16 @@
  */
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\Table\Table;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Filter\OutputFilter;
+use Joomla\CMS\Language\Text;
 /**
  * Hello Table class
  *
  * @since  0.0.1
  */
-class TjreportsTableTjreport extends JTable
+class TjreportsTableTjreport extends Table
 {
 	/**
 	 * Constructor
@@ -52,10 +56,10 @@ protected function _getAssetName()
 	 *
 	 * @since  1.0.0
 	 */
-	protected function _getAssetParentId(JTable $table = null, $id = null)
+	protected function _getAssetParentId(Table $table = null, $id = null)
 	{
 		// We will retrieve the parent-asset from the Asset-table
-		$assetParent   = JTable::getInstance('Asset');
+		$assetParent   = Table::getInstance('Asset');
 
 		// Default: if no asset-parent can be found we take the global asset
 		$assetParentId = $assetParent->getRootId();
@@ -81,7 +85,7 @@ protected function _getAssetParentId(JTable $table = null, $id = null)
 	 */
 	public function check()
 	{
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 
 		$this->alias = trim($this->alias);
 
@@ -92,43 +96,43 @@ public function check()
 
 		if ($this->alias)
 		{
-			if (JFactory::getConfig()->get('unicodeslugs') == 1)
+			if (Factory::getConfig()->get('unicodeslugs') == 1)
 			{
-				$this->alias = JFilterOutput::stringURLUnicodeSlug($this->alias);
+				$this->alias = OutputFilter::stringURLUnicodeSlug($this->alias);
 			}
 			else
 			{
-				$this->alias = JFilterOutput::stringURLSafe($this->alias);
+				$this->alias = OutputFilter::stringURLSafe($this->alias);
 			}
 		}
 
 		// Check if course with same alias is present
-		$table = JTable::getInstance('Tjreport', 'TjreportsTable', array('dbo', $db));
+		$table = Table::getInstance('Tjreport', 'TjreportsTable', array('dbo', $db));
 
 		if ($table->load(array('alias' => $this->alias)) && ($table->id != $this->id || $this->id == 0))
 		{
-			$msg = JText::_('COM_TJREPORT_SAVE_ALIAS_WARNING');
+			$msg = Text::_('COM_TJREPORT_SAVE_ALIAS_WARNING');
 
 			while ($table->load(array('alias' => $this->alias)))
 			{
 				$this->alias = JString::increment($this->alias, 'dash');
 			}
 
-			JFactory::getApplication()->enqueueMessage($msg, 'warning');
+			Factory::getApplication()->enqueueMessage($msg, 'warning');
 		}
 
 		$tjreport_views = array('reports');
 
 		if (in_array($this->alias, $tjreport_views))
 		{
-			$this->setError(JText::_('COM_TJREPORT_VIEW_WITH_SAME_ALIAS'));
+			$this->setError(Text::_('COM_TJREPORT_VIEW_WITH_SAME_ALIAS'));
 
 			return false;
 		}
 
 		if (trim(str_replace('-', '', $this->alias)) == '')
 		{
-			$this->alias = JFactory::getDate()->format("Y-m-d-H-i-s");
+			$this->alias = Factory::getDate()->format("Y-m-d-H-i-s");
 		}
 
 		return parent::check();
diff --git a/tjreports/administrator/tjreports.php b/tjreports/administrator/tjreports.php
index 9992afa..29e332c 100755
--- a/tjreports/administrator/tjreports.php
+++ b/tjreports/administrator/tjreports.php
@@ -9,11 +9,16 @@
 
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Uri\Uri;
+use Joomla\CMS\HTML\HTMLHelper;
+use Joomla\CMS\MVC\Controller\BaseController;
 
 // Access check.
-if (!JFactory::getUser()->authorise('core.manage', 'com_tjreports'))
+if (!Factory::getUser()->authorise('core.manage', 'com_tjreports'))
 {
-	throw new Exception(JText::_('JERROR_ALERTNOAUTHOR'));
+	throw new Exception(Text::_('JERROR_ALERTNOAUTHOR'));
 }
 
 if (!defined('DS'))
@@ -33,14 +38,13 @@
 	define('COM_TJLMS_WRAPPER_DIV', 'tjlms-wrapper row-fluid');
 }
 
-$document = JFactory::getDocument();
-$document->addStyleSheet(JUri::root(true) . '/media/com_tjreports/css/font-awesome/css/font-awesome.min.css');
+HTMLHelper::_('stylesheet', '/media/com_tjreports/css/font-awesome/css/font-awesome.min.css');
 
 // Include dependancies
 jimport('joomla.application.component.controller');
 
 JLoader::registerPrefix('Tjreports', JPATH_COMPONENT_ADMINISTRATOR);
 
-$controller = JControllerLegacy::getInstance('Tjreports');
-$controller->execute(JFactory::getApplication()->input->get('task'));
+$controller = BaseController::getInstance('Tjreports');
+$controller->execute(Factory::getApplication()->input->get('task'));
 $controller->redirect();
diff --git a/tjreports/administrator/views/tjreport/tmpl/edit.php b/tjreports/administrator/views/tjreport/tmpl/edit.php
index fe2f011..437ec19 100644
--- a/tjreports/administrator/views/tjreport/tmpl/edit.php
+++ b/tjreports/administrator/views/tjreport/tmpl/edit.php
@@ -8,8 +8,12 @@
  */
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\HTML\HTMLHelper;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Router\Route;
 JHtml::_('behavior.formvalidator');
-$input = JFactory::getApplication()->input;
+$input = Factory::getApplication()->input;
 
 $showParent = true;
 if($this->form->getValue('id'))
@@ -38,7 +42,7 @@
 					var params = JSON.stringify(JSON.parse(jQuery("#jform_param").val()));
 					jQuery("#jform_param").val(params)
 				}catch(e){
-					alert(Joomla.JText._("COM_TJREPORTS_INVALID_JSON_VALUE"));
+					alert(Joomla.Text._("COM_TJREPORTS_INVALID_JSON_VALUE"));
 					return false;
 				}
 			}
@@ -52,14 +56,14 @@
 	};
 ');
 ?>
-<form action="<?php echo JRoute::_('index.php?option=com_tjreports&layout=edit&id=' . (int) $this->item->id); ?>"
+<form action="<?php echo Route::_('index.php?option=com_tjreports&layout=edit&id=' . (int) $this->item->id); ?>"
     method="post" name="adminForm" id="adminForm" class="form-validate tjreportForm">
 
 	<div class="form-horizontal" id="tjreportContainer">
 		<fieldset class="adminform">
-			<?php echo JHtml::_('bootstrap.startTabSet', 'myTab', array('active' => 'general')); ?>
+			<?php echo HTMLHelper::_('bootstrap.startTabSet', 'myTab', array('active' => 'general')); ?>
 
-			<?php echo JHtml::_('bootstrap.addTab', 'myTab', 'general', JText::_('COM_TJREPORTS_FEILDSET_DETAILS')); ?>
+			<?php echo HTMLHelper::_('bootstrap.addTab', 'myTab', 'general', Text::_('COM_TJREPORTS_FEILDSET_DETAILS')); ?>
 				<div class="control-group" style="display:none">
 					<div class="control-label"><?php echo $this->form->getLabel('id'); ?></div>
 					<div class="controls"><?php echo $this->form->getInput('id'); ?></div>
@@ -99,7 +103,7 @@
 					<div class="control-label">&nbsp;</div>
 					<div class="controls">
 						<button onclick="tjrContentUI.tjreport.getParams(true); return false;" class="btn">
-							<?php echo JText::_('COM_TJREPORTS_LOAD_DEFAULT_PARAMS') ?>
+							<?php echo Text::_('COM_TJREPORTS_LOAD_DEFAULT_PARAMS') ?>
 						</button>
 					</div>
 				</div>
@@ -119,21 +123,21 @@
 					<input type="hidden" name="jform[plugin]" id="jform_plugin" value=""/>
 		<?php	}	?>
 
-			<?php echo JHtml::_('bootstrap.endTab'); ?>
+			<?php echo HTMLHelper::_('bootstrap.endTab'); ?>
 
 			<?php if ($this->canDo->get('core.admin')) : ?>
-				<?php echo JHtml::_('bootstrap.addTab', 'myTab', 'rules', JText::_('COM_CONTENT_FIELDSET_RULES')); ?>
+				<?php echo HTMLHelper::_('bootstrap.addTab', 'myTab', 'rules', Text::_('COM_CONTENT_FIELDSET_RULES')); ?>
 					<div class="control-group">
 						<div class="controls"><?php echo $this->form->getInput('rules'); ?></div>
 					</div>
-				<?php echo JHtml::_('bootstrap.endTab'); ?>
+				<?php echo HTMLHelper::_('bootstrap.endTab'); ?>
 			<?php endif; ?>
 
-			<?php echo JHtml::_('bootstrap.endTabSet'); ?>
+			<?php echo HTMLHelper::_('bootstrap.endTabSet'); ?>
 		</fieldset>
 
 	</div>
     <input type="hidden" name="extension" value="<?php echo $input->get('extension') ?>" id="jform_parent" />
     <input type="hidden" id="task" name="task" value="tjreport.edit" />
-    <?php echo JHtml::_('form.token'); ?>
+    <?php echo HTMLHelper::_('form.token'); ?>
 </form>
diff --git a/tjreports/administrator/views/tjreports/tmpl/default.php b/tjreports/administrator/views/tjreports/tmpl/default.php
index 928d17a..d17d2c6 100644
--- a/tjreports/administrator/views/tjreports/tmpl/default.php
+++ b/tjreports/administrator/views/tjreports/tmpl/default.php
@@ -8,8 +8,13 @@
  */
 // No direct access to this file
 defined('_JEXEC') or die;
+use Joomla\CMS\HTML\HTMLHelper;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Layout\LayoutHelper;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Router\Route;
 JHtml::_('formbehavior.chosen', 'select');
-$user	= JFactory::getUser();
+$user	= Factory::getUser();
 $listOrder     = $this->escape($this->state->get('list.ordering'));
 $listDirn      = $this->escape($this->state->get('list.direction'));
 
@@ -18,10 +23,10 @@
 if ($saveOrder)
 {
 	$saveOrderingUrl = 'index.php?option=com_tjreports&task=tjreports.saveOrderAjax&tmpl=component';
-	JHtml::_('sortablelist.sortable', 'reportList', 'adminForm', strtolower($listDirn), $saveOrderingUrl);
+	HTMLHelper::_('sortablelist.sortable', 'reportList', 'adminForm', strtolower($listDirn), $saveOrderingUrl);
 }
 
-$input = JFactory::getApplication()->input;
+$input = Factory::getApplication()->input;
 ?>
 <form action="index.php?option=com_tjreports&view=tjreports" method="post" id="adminForm" name="adminForm">
 	<?php if (!empty($this->sidebar)):?>
@@ -36,7 +41,7 @@
 	<div class="row-fluid">
 		<div class="span12">
 			<?php
-				echo JLayoutHelper::render(
+				echo LayoutHelper::render(
 					'joomla.searchtools.default',
 					array('view' => $this)
 				);
@@ -48,7 +53,7 @@
 		<thead>
 			<tr>
 				<th width="2%" class="nowrap hidden-phone center">
-					<?php echo JHtml::_('grid.sort', '<i class="icon-menu-2"></i>', 'ordering', $listDirn, $listOrder, null, 'asc', 'JGRID_HEADING_ORDERING'); ?>
+					<?php echo HTMLHelper::_('grid.sort', '<i class="icon-menu-2"></i>', 'ordering', $listDirn, $listOrder, null, 'asc', 'JGRID_HEADING_ORDERING'); ?>
 				</th>
 
 				<th width="2%">
@@ -56,26 +61,26 @@
 				</th>
 
 				<th width="30%">
-					<?php echo JHtml::_('grid.sort', 'COM_TJREPORTS_FORM_LBL_REPORT_TITLE', 'title', $listDirn, $listOrder); ?>
+					<?php echo HTMLHelper::_('grid.sort', 'COM_TJREPORTS_FORM_LBL_REPORT_TITLE', 'title', $listDirn, $listOrder); ?>
 				</th>
 
 				<th width="20%">
-					<?php echo JHtml::_('grid.sort', 'COM_TJREPORTS_FORM_LBL_REPORT_PLUGIN', 'plugin', $listDirn, $listOrder); ?>
+					<?php echo HTMLHelper::_('grid.sort', 'COM_TJREPORTS_FORM_LBL_REPORT_PLUGIN', 'plugin', $listDirn, $listOrder); ?>
 				</th>
 
 				<th width="20%" class="center">
-					<?php echo JHtml::_('grid.sort', 'COM_TJREPORTS_FORM_LBL_REPORT_CLIENT', 'client', $listDirn, $listOrder); ?>
+					<?php echo HTMLHelper::_('grid.sort', 'COM_TJREPORTS_FORM_LBL_REPORT_CLIENT', 'client', $listDirn, $listOrder); ?>
 				</th>
 
 				<th width="10%" class="center">
-					<?php echo JHtml::_('grid.sort', 'COM_TJREPORTS_LIST_SAVED_QUERY', 'savedquery', $listDirn, $listOrder); ?>
+					<?php echo HTMLHelper::_('grid.sort', 'COM_TJREPORTS_LIST_SAVED_QUERY', 'savedquery', $listDirn, $listOrder); ?>
 				</th>
 
 				<th width="17%" class="center">
-					<?php echo JText::_('COM_TJREPORTS_REPORTS_VIEW_REPORT');?>
+					<?php echo Text::_('COM_TJREPORTS_REPORTS_VIEW_REPORT');?>
 				</th>
 				<th width="17%" class="center">
-					<?php echo JHtml::_('grid.sort', 'COM_TJREPORTS_LIST_ID', 'id', $listDirn, $listOrder); ?>
+					<?php echo HTMLHelper::_('grid.sort', 'COM_TJREPORTS_LIST_ID', 'id', $listDirn, $listOrder); ?>
 				</th>
 			</tr>
 		</thead>
@@ -99,8 +104,8 @@
 				{
 					$reportId = $row->id;
 				}
-				$link = JRoute::_('index.php?option=com_tjreports&task=tjreport.edit&id=' . $row->id.'&client='.$input->get('client','','STRING'));
-				$report_link = JRoute::_('index.php?option=com_tjreports&view=reports&client=' . $row->client . '&reportToBuild='. $row->plugin . '&reportId=' . $reportId);
+				$link = Route::_('index.php?option=com_tjreports&task=tjreport.edit&id=' . $row->id.'&client='.$input->get('client','','STRING'));
+				$report_link = Route::_('index.php?option=com_tjreports&view=reports&client=' . $row->client . '&reportToBuild='. $row->plugin . '&reportId=' . $reportId);
 				?>
 				<tr>
 					<td>
@@ -109,7 +114,7 @@
 						<?php if (!$canChange) : ?>
 							<?php $iconClass = ' inactive'; ?>
 						<?php elseif (!$saveOrder) : ?>
-						<?php $iconClass = ' inactive tip-top hasTooltip" title="' . JHtml::tooltipText('JORDERINGDISABLED'); ?>
+						<?php $iconClass = ' inactive tip-top hasTooltip" title="' . HTMLHelper::tooltipText('JORDERINGDISABLED'); ?>
 						<?php endif; ?>
 						<span class="sortable-handler<?php echo $iconClass; ?>">
 							<span class="icon-menu" aria-hidden="true"></span>
@@ -119,14 +124,14 @@
 						<?php endif; ?>
 					</td>
 					<td>
-						<?php echo JHtml::_('grid.id', $i, $row->id); ?>
+						<?php echo HTMLHelper::_('grid.id', $i, $row->id); ?>
 					</td>
 					<td>
 						<?php
 						if ($canEdit)
 						{
 						?>
-						<a href="<?php echo $link; ?>" title="<?php echo JText::_('COM_TJREPORTS_EDIT'); ?>">
+						<a href="<?php echo $link; ?>" title="<?php echo Text::_('COM_TJREPORTS_EDIT'); ?>">
 							<?php echo htmlspecialchars($row->title, ENT_COMPAT, 'UTF-8'); ?>
 						</a>
 						<?php
@@ -147,7 +152,7 @@
 						<?php echo $row->savedquery; ?>
 					</td>
 					<td class="center">
-						<a href="<?php echo $report_link; ?>"><?php echo JText::_('COM_TJREPORTS_REPORTS_VIEW');?></a>
+						<a href="<?php echo $report_link; ?>"><?php echo Text::_('COM_TJREPORTS_REPORTS_VIEW');?></a>
 					</td>
 					<td class="center">
 						<?php echo $reportId; ?>
@@ -158,7 +163,7 @@
 	</table>
 	<?php }else{?>
 		<div class="alert alert-no-items">
-			<?php echo JText::_('JGLOBAL_NO_MATCHING_RESULTS'); ?>
+			<?php echo Text::_('JGLOBAL_NO_MATCHING_RESULTS'); ?>
 		</div>
 	<?php } ?>
 	<input type="hidden" name="task" value=""/>
@@ -166,5 +171,5 @@
 	<input type="hidden" name="extension" value="<?php echo $input->get('extension','','word'); ?>">
 	<input type="hidden" name="filter_order" value="<?php echo $listOrder; ?>" />
 	<input type="hidden" name="filter_order_Dir" value="<?php echo $listDirn; ?>" />
-	<?php echo JHtml::_('form.token'); ?>
+	<?php echo HTMLHelper::_('form.token'); ?>
 </form>
diff --git a/tjreports/administrator/views/tjreports/view.html.php b/tjreports/administrator/views/tjreports/view.html.php
index a1c3ba3..845596d 100644
--- a/tjreports/administrator/views/tjreports/view.html.php
+++ b/tjreports/administrator/views/tjreports/view.html.php
@@ -8,13 +8,18 @@
  */
 // No direct access to this file
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\View\HtmlView;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Factory;
+use Joomla\CMS\HTML\HTMLHelper;
+use Joomla\CMS\Toolbar\ToolbarHelper;
 require_once JPATH_COMPONENT . '/helpers/tjreports.php';
 /**
  * HelloWorlds View
  *
  * @since  0.0.1
  */
-class TjreportsViewTjreports extends JViewLegacy
+class TjreportsViewTjreports extends HtmlView
 {
 	/**
 	 * Display the Tjreports view
@@ -29,7 +34,7 @@ public function display($tpl = null)
 
 		if (!$this->canDo->get('core.view'))
 		{
-			JError::raiseError(403, JText::_('JERROR_ALERTNOAUTHOR'));
+			JError::raiseError(403, Text::_('JERROR_ALERTNOAUTHOR'));
 
 			return false;
 		}
@@ -42,10 +47,10 @@ public function display($tpl = null)
 		$this->filterForm    = $this->get('FilterForm');
 
 		// Initialise variables.
-		$app = JFactory::getApplication('administrator');
+		$app = Factory::getApplication('administrator');
 
 		// Get extension name
-		$client = JFactory::getApplication()->input->get('client', '', 'word');
+		$client = Factory::getApplication()->input->get('client', '', 'word');
 
 		if ($client)
 		{
@@ -69,33 +74,33 @@ public function display($tpl = null)
 	 */
 	protected function addToolBar()
 	{
-		$name = JText::_('COM_TJREPORTS');
+		$name = Text::_('COM_TJREPORTS');
 
-		JToolBarHelper::title($name, 'list');
+		ToolbarHelper::title($name, 'list');
 
 		if ($this->canDo->get('core.create'))
 		{
-			JToolBarHelper::addNew('tjreport.add');
+			ToolbarHelper::addNew('tjreport.add');
 		}
 
 		if ($this->canDo->get('core.edit'))
 		{
-			JToolBarHelper::editList('tjreport.edit');
+			ToolbarHelper::editList('tjreport.edit');
 		}
 
 		if ($this->canDo->get('core.delete'))
 		{
-			JToolBarHelper::deleteList('', 'tjreports.delete');
+			ToolbarHelper::deleteList('', 'tjreports.delete');
 		}
 
 		if ($this->canDo->get('core.admin'))
 		{
-			JToolBarHelper::preferences('com_tjreports');
+			ToolbarHelper::preferences('com_tjreports');
 		}
 
 		if ($this->canDo->get('core.create'))
 		{
-			JToolBarHelper::custom('tjreports.discover', 'refresh', 'refresh', 'JLIB_INSTALLER_DISCOVER', false);
+			ToolbarHelper::custom('tjreports.discover', 'refresh', 'refresh', 'JLIB_INSTALLER_DISCOVER', false);
 		}
 	}
 }
diff --git a/tjreports/plugins/actionlog/tjreports/tjreports.php b/tjreports/plugins/actionlog/tjreports/tjreports.php
index c47aa13..dec27ba 100644
--- a/tjreports/plugins/actionlog/tjreports/tjreports.php
+++ b/tjreports/plugins/actionlog/tjreports/tjreports.php
@@ -10,11 +10,12 @@
 
 // No direct access.
 defined('_JEXEC') or die();
+use Joomla\CMS\Factory;
+use Joomla\CMS\Language\Text;
 
 JLoader::register('ActionlogsHelper', JPATH_ADMINISTRATOR . '/components/com_actionlogs/helpers/actionlogs.php');
 
 use Joomla\CMS\Plugin\CMSPlugin;
-use Joomla\CMS\Factory;
 use Joomla\CMS\MVC\Model\BaseDatabaseModel;
 
 /**
@@ -92,9 +93,9 @@ public function tjReportsOnAfterReportSave($context, $table, $isNew)
 			return;
 		}
 
-		$context = JFactory::getApplication()->input->get('option');
+		$context = Factory::getApplication()->input->get('option');
 
-		$user = JFactory::getUser();
+		$user = Factory::getUser();
 
 		if ($isNew && !empty($table->client))
 		{
@@ -114,7 +115,7 @@ public function tjReportsOnAfterReportSave($context, $table, $isNew)
 
 		if ($table->client)
 		{
-			$language = JFactory::getLanguage();
+			$language = Factory::getLanguage();
 			$language->load($table->client);
 		}
 
@@ -123,7 +124,7 @@ public function tjReportsOnAfterReportSave($context, $table, $isNew)
 			'id'          => $table->id,
 			'title'       => $table->title,
 			'plugin'      => $table->plugin,
-			'client'      => JText::_(strtoupper($table->client)),
+			'client'      => Text::_(strtoupper($table->client)),
 			'itemlink'    => 'index.php?option=com_tjreports&task=tjreport.edit&id=' . $table->id,
 			'userid'      => $user->id,
 			'username'    => $user->username,
@@ -153,12 +154,12 @@ public function tjReportsOnAfterReportDelete($context, $table)
 			return;
 		}
 
-		$context            = JFactory::getApplication()->input->get('option');
-		$user               = JFactory::getUser();
+		$context            = Factory::getApplication()->input->get('option');
+		$user               = Factory::getUser();
 
 		if (!empty($table->client))
 		{
-			$language = JFactory::getLanguage();
+			$language = Factory::getLanguage();
 			$language->load($table->client);
 
 			$messageLanguageKey = 'PLG_ACTIONLOG_TJREPORTS_REPORT_DELETED_WITH_CLIENT';
@@ -173,7 +174,7 @@ public function tjReportsOnAfterReportDelete($context, $table)
 				'id'          => $table->id,
 				'title'       => $table->title,
 				'plugin'      => $table->plugin,
-				'client'      => JText::_(strtoupper($table->client)),
+				'client'      => Text::_(strtoupper($table->client)),
 				'userid'      => $user->id,
 				'username'    => $user->username,
 				'accountlink' => 'index.php?option=com_users&task=user.edit&id=' . $user->id,
diff --git a/tjreports/plugins/api/reports/reports.php b/tjreports/plugins/api/reports/reports.php
index 5d4a54b..b29380d 100644
--- a/tjreports/plugins/api/reports/reports.php
+++ b/tjreports/plugins/api/reports/reports.php
@@ -10,6 +10,7 @@
 
 // No direct access.
 defined('_JEXEC') or die;
+use Joomla\CMS\Factory;
 
 jimport('joomla.plugin.plugin');
 JLoader::import('components.com_tjreports.models.report', JPATH_SITE);
@@ -37,7 +38,7 @@ public function __construct(&$subject, $config = array())
 		ApiResource::addIncludePath(dirname(__FILE__) . '/reports');
 
 		// Load language files
-		$lang = JFactory::getLanguage();
+		$lang = Factory::getLanguage();
 		$lang->load('plg_api_reports', JPATH_SITE . "/plugins/api/reports/", 'en-GB', true);
 	}
 }
diff --git a/tjreports/plugins/content/tjreportsfields/tjreportsfields.php b/tjreports/plugins/content/tjreportsfields/tjreportsfields.php
index cebcf68..e7cfb80 100644
--- a/tjreports/plugins/content/tjreportsfields/tjreportsfields.php
+++ b/tjreports/plugins/content/tjreportsfields/tjreportsfields.php
@@ -8,6 +8,9 @@
  */
 
 defined('_JEXEC') or die('Restricted access');
+use Joomla\CMS\Plugin\CMSPlugin;
+use Joomla\CMS\Table\Table;
+use Joomla\CMS\Factory;
 
 // Load TJReports db helper
 JLoader::import('database', JPATH_SITE . '/components/com_tjreports/helpers');
@@ -17,7 +20,7 @@
  *
  * @since  1.1.0
  */
-class PlgContentTjreportsfields extends JPlugin
+class PlgContentTjreportsfields extends CMSPlugin
 {
 	/**
 	 * Load the language file on instantiation.
@@ -89,8 +92,8 @@ public function onContentBeforeSave($context, $row, $isNew)
 
 		// $context = com_fields.field
 
-		JTable::addIncludePath(JPATH_ADMINISTRATOR . '/components/com_fields/tables');
-		$fieldsTable = JTable::getInstance('Field', 'FieldsTable');
+		Table::addIncludePath(JPATH_ADMINISTRATOR . '/components/com_fields/tables');
+		$fieldsTable = Table::getInstance('Field', 'FieldsTable');
 		$fieldsTable->load(array('id' => $row->id));
 
 		// Set an array with field id, field name, so it can be used in onContentAfterSave trigger
@@ -149,7 +152,7 @@ public function onContentAfterSave($context, $field, $isNew)
 		}
 
 		// Get column name, type for custom fields index table
-		$db             = JFactory::getDbo();
+		$db             = Factory::getDbo();
 		$columnsDetails = $db->getTableColumns($this->customFieldsTable);
 
 		// Extract column names from $columnDetails
@@ -235,7 +238,7 @@ protected function setCustomFieldsTableName($context)
 	 */
 	protected function addColumn($newColumn)
 	{
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 
 		// ALTER TABLE tableName ADD newColumn dataType
 		// eg. ALTER TABLE `#__tjreports_com_users_user` ADD `dob` datetime
@@ -258,7 +261,7 @@ protected function addColumn($newColumn)
 	 */
 	protected function updateColumn($oldColumn, $newColumn)
 	{
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 
 		// ALTER TABLE tableName CHANGE oldColumn newColumn dataType
 		$query = 'ALTER TABLE ' . $db->quoteName($this->customFieldsTable) . '
@@ -280,7 +283,7 @@ protected function updateColumn($oldColumn, $newColumn)
 	 */
 	protected function deleteColumn($column)
 	{
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 
 		// ALTER TABLE tableName CHANGE oldColumn newColumn dataType
 		$query = 'ALTER TABLE ' . $db->quoteName($this->customFieldsTable) . '
diff --git a/tjreports/plugins/privacy/tjreports/tjreports.php b/tjreports/plugins/privacy/tjreports/tjreports.php
index b2ba275..b7fcc53 100644
--- a/tjreports/plugins/privacy/tjreports/tjreports.php
+++ b/tjreports/plugins/privacy/tjreports/tjreports.php
@@ -10,11 +10,12 @@
 
 // No direct access.
 defined('_JEXEC') or die();
+use Joomla\CMS\User\User;
+use Joomla\CMS\Table\User;
 
 JLoader::register('PrivacyPlugin', JPATH_ADMINISTRATOR . '/components/com_privacy/helpers/plugin.php');
 JLoader::register('PrivacyRemovalStatus', JPATH_ADMINISTRATOR . '/components/com_privacy/helpers/removal/status.php');
 
-use Joomla\CMS\User\User;
 use Joomla\CMS\Factory;
 use Joomla\CMS\Language\Text;
 use Joomla\CMS\MVC\Model\BaseDatabaseModel;
@@ -75,7 +76,7 @@ public function onPrivacyCollectAdminCapabilities()
 	 *
 	 * @since   1.0.3
 	 */
-	public function onPrivacyExportRequest(PrivacyTableRequest $request, JUser $user = null)
+	public function onPrivacyExportRequest(PrivacyTableRequest $request, User $user = null)
 	{
 		if (!$user)
 		{
@@ -101,7 +102,7 @@ public function onPrivacyExportRequest(PrivacyTableRequest $request, JUser $user
 	 *
 	 * @since   1.0.3
 	 */
-	private function createTJReportsUserReports(JTableUser $user)
+	private function createTJReportsUserReports(User $user)
 	{
 		$domain = $this->createDomain('User Reports', 'Reports of user in TJReports');
 
@@ -135,7 +136,7 @@ private function createTJReportsUserReports(JTableUser $user)
 	 *
 	 * @since   1.0.3
 	 */
-	public function onPrivacyRemoveData(PrivacyTableRequest $request, JUser $user = null)
+	public function onPrivacyRemoveData(PrivacyTableRequest $request, User $user = null)
 	{
 		// This plugin only processes data for registered user accounts
 		if (!$user)
diff --git a/tjreports/plugins/user/tjreportsindexer/tjreportsindexer.php b/tjreports/plugins/user/tjreportsindexer/tjreportsindexer.php
index 2a93064..d346163 100644
--- a/tjreports/plugins/user/tjreportsindexer/tjreportsindexer.php
+++ b/tjreports/plugins/user/tjreportsindexer/tjreportsindexer.php
@@ -9,13 +9,17 @@
 
 // No direct access
 defined('_JEXEC') or die('Restricted access');
+use Joomla\CMS\Plugin\CMSPlugin;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Table\Table;
+use Joomla\Data\DataObject;
 
 /**
  * Class for Tjreportsindexer User Plugin
  *
  * @since  1.1.0
  */
-class PlgUserTjreportsindexer extends JPlugin
+class PlgUserTjreportsindexer extends CMSPlugin
 {
 	/**
 	 * Load the language file on instantiation.
@@ -96,7 +100,7 @@ public function onUserAfterDelete($user, $success, $msg)
 	 */
 	protected function addIndexerEntry($user)
 	{
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 
 		// Get column name, type for custom fields index table
 		$columnsDetails = $db->getTableColumns($this->customFieldsTable);
@@ -107,7 +111,7 @@ protected function addIndexerEntry($user)
 		// For all fields get type, fieldparams
 		// Register FieldsHelper, Get fields data from current entry
 		JLoader::register('FieldsHelper', JPATH_ADMINISTRATOR . '/components/com_fields/helpers/fields.php');
-		$userTableObj = JTable::getInstance('User');
+		$userTableObj = Table::getInstance('User');
 		$userTableObj->load((int) $user['id']);
 		$fields = FieldsHelper::getFields('com_users.user', $userTableObj, true);
 
@@ -176,7 +180,7 @@ protected function addIndexerEntry($user)
 	 */
 	protected function deleteIndexerEntry($userId)
 	{
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 
 		// Here record_id = user_id
 		$query = $db->getQuery(true)
@@ -187,7 +191,7 @@ protected function deleteIndexerEntry($userId)
 		{
 			$db->setQuery($query)->execute();
 		}
-		catch (JDatabaseExceptionExecuting $e)
+		catch (DataObjectbaseExceptionExecuting $e)
 		{
 			return false;
 		}
diff --git a/tjreports/script.tjreports.php b/tjreports/script.tjreports.php
index 297161a..b01e4d2 100755
--- a/tjreports/script.tjreports.php
+++ b/tjreports/script.tjreports.php
@@ -29,11 +29,16 @@
  */
 
 defined('_JEXEC') or die( ';)' );
+use Joomla\CMS\Factory;
+use Joomla\CMS\Object\CMSObject;
+use Joomla\CMS\Installer\Installer;
+use Joomla\CMS\Table\Table;
+use Joomla\CMS\Filesystem\File;
+use Joomla\CMS\Filesystem\Folder;
 jimport('joomla.installer.installer');
 jimport('joomla.filesystem.file');
 jimport('joomla.application.component.helper');
 
-Use Joomla\CMS\Table\Table;
 use Joomla\CMS\MVC\Model\BaseDatabaseModel;
 
 /**
@@ -99,9 +104,9 @@ public function uninstall($parent)
 	{
 		jimport('joomla.installer.installer');
 
-		$db = JFactory::getDBO();
+		$db = Factory::getDBO();
 
-		$status          = new JObject;
+		$status          = new CMSObject;
 		$status->plugins = array();
 
 		$src = $parent->getParent()->getPath('source');
@@ -126,7 +131,7 @@ public function uninstall($parent)
 
 						if ($id)
 						{
-							$installer         = new JInstaller;
+							$installer         = new Installer;
 							$result            = $installer->uninstall('plugin', $id);
 							$status->plugins[] = array(
 								'name' => 'plg_' . $plugin,
@@ -184,9 +189,9 @@ public function postflight($type, $parent)
 	{
 		$src = $parent->getParent()->getPath('source');
 
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 
-		$status = new JObject;
+		$status = new CMSObject;
 		$status->plugins = array();
 
 		// Plugins installation
@@ -229,7 +234,7 @@ public function postflight($type, $parent)
 						$db->setQuery($query);
 						$count = $db->loadResult();
 
-						$installer = new JInstaller;
+						$installer = new Installer;
 						$result = $installer->install($path);
 
 						$status->plugins[] = array('name' => 'plg_' . $plugin, 'group' => $folder, 'result' => $result);
@@ -269,7 +274,7 @@ public function migrateReportsOrdering()
 		$tjreportsModel->setState('list.ordering', 'id');
 		$reportList = $tjreportsModel->getItems();
 
-		JTable::addIncludePath(JPATH_ROOT . '/administrator/components/com_tjreports/tables');
+		Table::addIncludePath(JPATH_ROOT . '/administrator/components/com_tjreports/tables');
 		$reportTable = Table::getInstance('Tjreport', 'TjreportsTable');
 
 		foreach ($reportList as $key => $report)
@@ -295,8 +300,8 @@ private function removeObsoleteFilesAndFolders($removeFilesAndFolders)
 			foreach($removeFilesAndFolders['files'] as $file)
 			{
 				$f = JPATH_ROOT.'/'.$file;
-				if(!JFile::exists($f)) continue;
-				JFile::delete($f);
+				if(!File::exists($f)) continue;
+				File::delete($f);
 			}
 		}
 
@@ -308,7 +313,7 @@ private function removeObsoleteFilesAndFolders($removeFilesAndFolders)
 			{
 				$f = JPATH_ROOT.'/'.$folder;
 				if(!file_exists($f)) continue;
-				JFolder::delete($f);
+				Folder::delete($f);
 			}
 		}
 	}
diff --git a/tjreports/site/controller.php b/tjreports/site/controller.php
index 943235e..f6f1776 100755
--- a/tjreports/site/controller.php
+++ b/tjreports/site/controller.php
@@ -9,6 +9,7 @@
  */
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Controller\BaseController;
 
 jimport('joomla.application.component.controller');
 
@@ -17,7 +18,7 @@
  *
  * @since  1.6
  */
-class TjreportsController extends JControllerLegacy
+class TjreportsController extends BaseController
 {
 	/**
 	 * Method to display a view.
diff --git a/tjreports/site/controllers/reports.json.php b/tjreports/site/controllers/reports.json.php
index 2dfa861..d241595 100644
--- a/tjreports/site/controllers/reports.json.php
+++ b/tjreports/site/controllers/reports.json.php
@@ -12,6 +12,12 @@
 
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Controller\AdminController;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Filter\OutputFilter;
+use Joomla\CMS\Response\JsonResponse;
+use Joomla\CMS\Plugin\PluginHelper;
+use Joomla\CMS\MVC\Model\BaseDatabaseModel;
 
 jimport('joomla.application.component.controlleradmin');
 
@@ -20,7 +26,7 @@
  *
  * @since  1.0.0
  */
-class TjreportsControllerReports extends JControllerAdmin
+class TjreportsControllerReports extends AdminController
 {
 	/**
 	 * Save a query for report engine
@@ -33,11 +39,11 @@ public function saveQuery()
 	{
 		try
 		{
-			$app = JFactory::getApplication();
-			$db        		= JFactory::getDBO();
+			$app = Factory::getApplication();
+			$db        		= Factory::getDBO();
 			$input 			= $app->input;
 			$post			= $input->post->getArray();
-			$current_user 	= JFactory::getUser()->id;
+			$current_user 	= Factory::getUser()->id;
 
 			if (empty($post))
 			{
@@ -51,13 +57,13 @@ public function saveQuery()
 
 			if ($alias)
 			{
-				if (JFactory::getConfig()->get('unicodeslugs') == 1)
+				if (Factory::getConfig()->get('unicodeslugs') == 1)
 				{
-					$alias = JFilterOutput::stringURLUnicodeSlug($alias);
+					$alias = OutputFilter::stringURLUnicodeSlug($alias);
 				}
 				else
 				{
-					$alias = JFilterOutput::stringURLSafe($alias);
+					$alias = OutputFilter::stringURLSafe($alias);
 				}
 			}
 
@@ -81,25 +87,24 @@ public function saveQuery()
 			{
 				$app->enqueueMessage($db->stderr());
 
-				echo new JResponseJson(null, 'Could not insert data.', true);
+				echo new JsonResponse(null, 'Could not insert data.', true);
 			}
 			else
 			{
 				$id = $db->insertid();
 				$insert_object->id = $id;
 
-				$dispatcher = JEventDispatcher::getInstance();
-				$extension = JFactory::getApplication()->input->get('option');
-				JPluginHelper::importPlugin('tjreports');
-				$dispatcher->trigger('tjReportsOnAfterReportSave', array($extension, $insert_object, true));
+				$extension = Factory::getApplication()->input->get('option');
+				PluginHelper::importPlugin('tjreports');
+				Factory::getApplication()->triggerEvent('tjReportsOnAfterReportSave', array($extension, $insert_object, true));
 
 				$app->enqueueMessage('Data save successfully.');
-				echo new JResponseJson('Done');
+				echo new JsonResponse('Done');
 			}
 		}
 		catch (Exception $e)
 		{
-			echo new JResponseJson($e);
+			echo new JsonResponse($e);
 		}
 	}
 
@@ -114,21 +119,21 @@ public function deleteQuery()
 	{
 		try
 		{
-			$app = JFactory::getApplication();
-			$db        		= JFactory::getDBO();
+			$app = Factory::getApplication();
+			$db        		= Factory::getDBO();
 			$input 			= $app->input;
 			$queryId = $input->get('queryId', 0, 'INT');
 
-			JModelLegacy::addIncludePath(JPATH_SITE . '/components/com_tjreports/models');
-			$model = JModelLegacy::getInstance('Report', 'TjreportsModel');
+			BaseDatabaseModel::addIncludePath(JPATH_SITE . '/components/com_tjreports/models');
+			$model = BaseDatabaseModel::getInstance('Report', 'TjreportsModel');
 
 			$result = $model->delete($queryId);
 
-			echo new JResponseJson($result);
+			echo new JsonResponse($result);
 		}
 		catch (Exception $e)
 		{
-			echo new JResponseJson($e);
+			echo new JsonResponse($e);
 		}
 	}
 }
diff --git a/tjreports/site/controllers/reports.php b/tjreports/site/controllers/reports.php
index 5cd560b..899e7f4 100644
--- a/tjreports/site/controllers/reports.php
+++ b/tjreports/site/controllers/reports.php
@@ -12,6 +12,12 @@
 
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Controller\AdminController;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Uri\Uri;
+use Joomla\CMS\Router\Route;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\MVC\Model\BaseDatabaseModel;
 
 jimport('joomla.application.component.controlleradmin');
 
@@ -20,7 +26,7 @@
  *
  * @since  1.0.0
  */
-class TjreportsControllerReports extends JControllerAdmin
+class TjreportsControllerReports extends AdminController
 {
 	/**
 	 * Function used to export data in csv format
@@ -31,23 +37,23 @@ class TjreportsControllerReports extends JControllerAdmin
 	 */
 	public function csvexport()
 	{
-		$app  = JFactory::getApplication();
-		$user = JFactory::getUser();
-		$input 	= JFactory::getApplication()->input;
+		$app  = Factory::getApplication();
+		$user = Factory::getUser();
+		$input 	= Factory::getApplication()->input;
 		$reportId = $input->post->get('reportId');
 
 		if (!$user->authorise('core.export', 'com_tjreports.tjreport.' . $reportId))
 		{
 			if ($user->guest)
 			{
-				$return = base64_encode(JUri::getInstance());
-				$login_url_with_return = JRoute::_('index.php?option=com_users&view=login&return=' . $return);
-				$app->enqueueMessage(JText::_('JERROR_ALERTNOAUTHOR'), 'notice');
+				$return = base64_encode(Uri::getInstance());
+				$login_url_with_return = Route::_('index.php?option=com_users&view=login&return=' . $return);
+				$app->enqueueMessage(Text::_('JERROR_ALERTNOAUTHOR'), 'notice');
 				$app->redirect($login_url_with_return, 403);
 			}
 			else
 			{
-				$app->enqueueMessage(JText::_('JERROR_ALERTNOAUTHOR'), 'error');
+				$app->enqueueMessage(Text::_('JERROR_ALERTNOAUTHOR'), 'error');
 				$app->setHeader('status', 403, true);
 
 				return;
@@ -58,8 +64,8 @@ public function csvexport()
 		$reportData = $this->model->getReportNameById($reportId);
 		$pluginName = $reportData->plugin;
 
-		JModelLegacy::addIncludePath(JPATH_SITE . '/plugins/tjreports/' . $pluginName);
-		$model = JModelLegacy::getInstance($pluginName, 'TjreportsModel');
+		BaseDatabaseModel::addIncludePath(JPATH_SITE . '/plugins/tjreports/' . $pluginName);
+		$model = BaseDatabaseModel::getInstance($pluginName, 'TjreportsModel');
 
 		$model->loadLanguage($pluginName);
 		$input->set('limit', 0);
@@ -90,7 +96,7 @@ public function csvexport()
 						$subTextTitle = $columns[$subKey]['title'];
 					}
 
-					$colTitleArray[] = $contentTitle . ' ' . JText::sprintf($subTextTitle, $contentTitle, $contentId);
+					$colTitleArray[] = $contentTitle . ' ' . Text::sprintf($subTextTitle, $contentTitle, $contentId);
 				}
 			}
 			else
@@ -106,7 +112,7 @@ public function csvexport()
 					$colTitle = $columns[$colKey]['title'];
 				}
 
-				$colTitleArray[] = JText::_($colTitle);
+				$colTitleArray[] = Text::_($colTitle);
 			}
 		}
 
@@ -165,11 +171,11 @@ public function csvexport()
 	public function pdfExport()
 	{
 		require_once JPATH_SITE . '/components/com_tjlms/models/review.php';
-		$app = JFactory::getApplication();
+		$app = Factory::getApplication();
 
-		$jinput = JFactory::getApplication()->input;
+		$jinput = Factory::getApplication()->input;
 
-		$user = JFactory::getUser();
+		$user = Factory::getUser();
 		$track_id = $jinput->get('track_id', '0', 'INT');
 		$curriculam_id = $jinput->get('curId', '0', 'INT');
 		$user_id = $user->id;
@@ -181,7 +187,7 @@ public function pdfExport()
 		}
 		else
 		{
-			return JError::raiseWarning(404, JText::_('JERROR_ALERTNOAUTHOR'));
+			return JError::raiseWarning(404, Text::_('JERROR_ALERTNOAUTHOR'));
 		}
 
 		jexit();
@@ -225,12 +231,12 @@ private function filterValue($data)
 	 */
 	public function defaultReport()
 	{
-		$input = JFactory::getApplication()->input;
+		$input = Factory::getApplication()->input;
 		$client = $input->get('client', '', 'STRING');
 
 		$model = $this->getModel('reports');
 		$reports = $model->getenableReportPlugins();
 
-		$this->setRedirect(JRoute::_('index.php?option=com_tjreports&view=reports&client=' . $client . '&reportId=' . $reports[0]['reportId'], false));
+		$this->setRedirect(Route::_('index.php?option=com_tjreports&view=reports&client=' . $client . '&reportId=' . $reports[0]['reportId'], false));
 	}
 }
diff --git a/tjreports/site/helpers/database.php b/tjreports/site/helpers/database.php
index b2fc4d6..b8fc885 100644
--- a/tjreports/site/helpers/database.php
+++ b/tjreports/site/helpers/database.php
@@ -9,6 +9,7 @@
 
 // No direct access
 defined('_JEXEC') or die('Restricted access');
+use Joomla\CMS\Factory;
 
 /**
  * Databse helper class for com_tjreports
@@ -31,7 +32,7 @@ class TjreportsfieldsHelperDatabase
 	 */
 	public function tableExists($tableName)
 	{
-		$db        = JFactory::getDbo();
+		$db        = Factory::getDbo();
 		$dbPrefix  = $db->getPrefix();
 		$allTables = $db->getTableList();
 
diff --git a/tjreports/site/layouts/joomla/pagination/link.php b/tjreports/site/layouts/joomla/pagination/link.php
index b21bf12..b49bff4 100644
--- a/tjreports/site/layouts/joomla/pagination/link.php
+++ b/tjreports/site/layouts/joomla/pagination/link.php
@@ -8,6 +8,8 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\HTML\HTMLHelper;
 
 /** @var JPaginationObject $item */
 $item = $displayData['data'];
@@ -28,33 +30,33 @@
 switch ((string) $item->text)
 {
 	// Check for "Start" item
-	case JText::_('JLIB_HTML_START') :
+	case Text::_('JLIB_HTML_START') :
 		$icon = 'icon-backward icon-first fa fa-step-backward';
-		$aria = JText::sprintf('JLIB_HTML_GOTO_POSITION', strtolower($item->text));
+		$aria = Text::sprintf('JLIB_HTML_GOTO_POSITION', strtolower($item->text));
 		break;
 
 	// Check for "Prev" item
-	case JText::_('JPREV') :
-		$item->text = JText::_('JPREVIOUS');
+	case Text::_('JPREV') :
+		$item->text = Text::_('JPREVIOUS');
 		$icon = 'icon-step-backward icon-previous fa fa-backward';
-		$aria = JText::sprintf('JLIB_HTML_GOTO_POSITION', strtolower($item->text));
+		$aria = Text::sprintf('JLIB_HTML_GOTO_POSITION', strtolower($item->text));
 		break;
 
 	// Check for "Next" item
-	case JText::_('JNEXT') :
+	case Text::_('JNEXT') :
 		$icon = 'icon-step-forward icon-next fa fa-forward';
-		$aria = JText::sprintf('JLIB_HTML_GOTO_POSITION', strtolower($item->text));
+		$aria = Text::sprintf('JLIB_HTML_GOTO_POSITION', strtolower($item->text));
 		break;
 
 	// Check for "End" item
-	case JText::_('JLIB_HTML_END') :
+	case Text::_('JLIB_HTML_END') :
 		$icon = 'icon-forward icon-last fa fa-step-forward';
-		$aria = JText::sprintf('JLIB_HTML_GOTO_POSITION', strtolower($item->text));
+		$aria = Text::sprintf('JLIB_HTML_GOTO_POSITION', strtolower($item->text));
 		break;
 
 	default:
 		$icon = null;
-		$aria = JText::sprintf('JLIB_HTML_GOTO_PAGE', $item->text);
+		$aria = Text::sprintf('JLIB_HTML_GOTO_PAGE', $item->text);
 		break;
 }
 
@@ -82,7 +84,7 @@
 
 	if (!is_numeric($item->text))
 	{
-		JHtml::_('bootstrap.tooltip');
+		HTMLHelper::_('bootstrap.tooltip');
 		$cssClasses[] = 'hasTooltip';
 		$title = ' title="' . $item->text . '" ';
 	}
@@ -106,7 +108,7 @@
 	</li>
 <?php else : ?>
 	<li class="<?php echo $class; ?>">
-	<span <?php echo $class == 'active' ? 'aria-current="true" aria-label="' . JText::sprintf('JLIB_HTML_PAGE_CURRENT', $item->text) . '"' : ''; ?>>
+	<span <?php echo $class == 'active' ? 'aria-current="true" aria-label="' . Text::sprintf('JLIB_HTML_PAGE_CURRENT', $item->text) . '"' : ''; ?>>
 		<?php echo $display; ?>
 	</span>
 	</li>
diff --git a/tjreports/site/layouts/joomla/pagination/links.php b/tjreports/site/layouts/joomla/pagination/links.php
index b699a02..b415a7d 100644
--- a/tjreports/site/layouts/joomla/pagination/links.php
+++ b/tjreports/site/layouts/joomla/pagination/links.php
@@ -8,6 +8,7 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Layout\LayoutHelper;
 
 use Joomla\Registry\Registry;
 
@@ -60,11 +61,11 @@
 	<?php if ($showPagesLinks && (!empty($pages))) : ?>
 		<ul class="pagination">
 			<?php
-				echo JLayoutHelper::render('joomla.pagination.link', $pages['start']);
-				echo JLayoutHelper::render('joomla.pagination.link', $pages['previous']); ?>
+				echo LayoutHelper::render('joomla.pagination.link', $pages['start']);
+				echo LayoutHelper::render('joomla.pagination.link', $pages['previous']); ?>
 			<?php foreach ($pages['pages'] as $k => $page) : ?>
 
-				<?php $output = JLayoutHelper::render('joomla.pagination.link', $page); ?>
+				<?php $output = LayoutHelper::render('joomla.pagination.link', $page); ?>
 				<?php if (in_array($k, range($range * $step - ($step + 1), $range * $step), true)) : ?>
 					<?php if (($k % $step === 0 || $k === $range * $step - ($step + 1)) && $k !== $currentPage && $k !== $range * $step - $step) : ?>
 						<?php $output = preg_replace('#(<a.*?>).*?(</a>)#', '$1...$2', $output); ?>
@@ -74,8 +75,8 @@
 				<?php echo $output; ?>
 			<?php endforeach; ?>
 			<?php
-				echo JLayoutHelper::render('joomla.pagination.link', $pages['next']);
-				echo JLayoutHelper::render('joomla.pagination.link', $pages['end']); ?>
+				echo LayoutHelper::render('joomla.pagination.link', $pages['next']);
+				echo LayoutHelper::render('joomla.pagination.link', $pages['end']); ?>
 		</ul>
 	<?php endif; ?>
 
diff --git a/tjreports/site/models/fields/createdby.php b/tjreports/site/models/fields/createdby.php
index 24c7199..c73b702 100755
--- a/tjreports/site/models/fields/createdby.php
+++ b/tjreports/site/models/fields/createdby.php
@@ -8,6 +8,8 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Factory;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +18,7 @@
  *
  * @since  1.6
  */
-class JFormFieldCreatedby extends JFormField
+class FormFieldCreatedby extends FormField
 {
 	/**
 	 * The form field type.
@@ -43,11 +45,11 @@ protected function getInput()
 
 		if ($user_id)
 		{
-			$user = JFactory::getUser($user_id);
+			$user = Factory::getUser($user_id);
 		}
 		else
 		{
-			$user   = JFactory::getUser();
+			$user   = Factory::getUser();
 			$html[] = '<input type="hidden" name="' . $this->name . '" value="' . $user->id . '" />';
 		}
 
diff --git a/tjreports/site/models/fields/filemultiple.php b/tjreports/site/models/fields/filemultiple.php
index 6cfd9d4..dcd4836 100755
--- a/tjreports/site/models/fields/filemultiple.php
+++ b/tjreports/site/models/fields/filemultiple.php
@@ -8,6 +8,7 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +17,7 @@
  *
  * @since  1.6
  */
-class JFormFieldFileMultiple extends JFormField
+class FormFieldFileMultiple extends FormField
 {
 	/**
 	 * The form field type.
diff --git a/tjreports/site/models/fields/foreignkey.php b/tjreports/site/models/fields/foreignkey.php
index 4bd0f37..56b9c93 100755
--- a/tjreports/site/models/fields/foreignkey.php
+++ b/tjreports/site/models/fields/foreignkey.php
@@ -8,6 +8,9 @@
  * @license    GNU General Public License version 2 or later; see LICENSE.txt
  */
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Factory;
+use Joomla\CMS\HTML\HTMLHelper;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +19,7 @@
  *
  * @since  1.6
  */
-class JFormFieldForeignKey extends JFormField
+class FormFieldForeignKey extends FormField
 {
 	/**
 	 * The form field type.
@@ -64,7 +67,7 @@ protected function getInput()
 		$fk_value = '';
 
 		// Load all the field options
-		$db    = JFactory::getDbo();
+		$db    = Factory::getDbo();
 		$query = $db->getQuery(true);
 
 		// Support for multiple fields on fk_values
@@ -113,7 +116,7 @@ protected function getInput()
 				// Iterate through all the results
 				foreach ($results as $result)
 				{
-					$options[] = JHtml::_('select.option', $result->{$this->key_field}, $result->{$this->value_field});
+					$options[] = HTMLHelper::_('select.option', $result->{$this->key_field}, $result->{$this->value_field});
 				}
 
 				$value = $this->value;
@@ -136,10 +139,10 @@ protected function getInput()
 				}
 				else
 				{
-					array_unshift($options, JHtml::_('select.option', '', ''));
+					array_unshift($options, HTMLHelper::_('select.option', '', ''));
 				}
 
-				$html = JHtml::_('select.genericlist', $options, $this->name, $input_options, 'value', 'text', $value, $this->id);
+				$html = HTMLHelper::_('select.genericlist', $options, $this->name, $input_options, 'value', 'text', $value, $this->id);
 				break;
 		}
 
diff --git a/tjreports/site/models/fields/modifiedby.php b/tjreports/site/models/fields/modifiedby.php
index a5e85c6..aae9f56 100755
--- a/tjreports/site/models/fields/modifiedby.php
+++ b/tjreports/site/models/fields/modifiedby.php
@@ -8,6 +8,8 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Factory;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +18,7 @@
  *
  * @since  1.6
  */
-class JFormFieldModifiedby extends JFormField
+class FormFieldModifiedby extends FormField
 {
 	/**
 	 * The form field type.
@@ -37,7 +39,7 @@ protected function getInput()
 	{
 		// Initialize variables.
 		$html   = array();
-		$user   = JFactory::getUser();
+		$user   = Factory::getUser();
 		$html[] = '<input type="hidden" name="' . $this->name . '" value="' . $user->id . '" />';
 		$html[] = "<div>" . $user->name . " (" . $user->username . ")</div>";
 
diff --git a/tjreports/site/models/fields/submit.php b/tjreports/site/models/fields/submit.php
index 4f6bad4..fee34ef 100755
--- a/tjreports/site/models/fields/submit.php
+++ b/tjreports/site/models/fields/submit.php
@@ -10,6 +10,8 @@
 
 // Check to ensure this file is included in Joomla!
 defined('_JEXEC') or die('Restricted access');
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Language\Text;
 
 jimport('joomla.form.formfield');
 
@@ -18,7 +20,7 @@
  *
  * @since  1.6
  */
-class JFormFieldSubmit extends JFormField
+class FormFieldSubmit extends FormField
 {
 	protected $type = 'submit';
 
@@ -38,9 +40,9 @@ public function getInput()
 		return '<button id="' . $this->id . '"'
 		. ' name="submit_' . $this->for . '"'
 		. ' value="' . $this->value . '"'
-		. ' title="' . JText::_('JSEARCH_FILTER_SUBMIT') . '"'
+		. ' title="' . Text::_('JSEARCH_FILTER_SUBMIT') . '"'
 		. ' class="btn" style="margin-top: -10px;">'
-		. JText::_('JSEARCH_FILTER_SUBMIT')
+		. Text::_('JSEARCH_FILTER_SUBMIT')
 		. ' </button>';
 	}
 }
diff --git a/tjreports/site/models/fields/timecreated.php b/tjreports/site/models/fields/timecreated.php
index fdc7923..dfd83b3 100755
--- a/tjreports/site/models/fields/timecreated.php
+++ b/tjreports/site/models/fields/timecreated.php
@@ -8,6 +8,10 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Date\Date;
+use Joomla\CMS\Language\Text;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +20,7 @@
  *
  * @since  1.6
  */
-class JFormFieldTimecreated extends JFormField
+class FormFieldTimecreated extends FormField
 {
 	/**
 	 * The form field type.
@@ -42,7 +46,7 @@ protected function getInput()
 
 		if (!strtotime($time_created))
 		{
-			$time_created = JFactory::getDate()->toSql();
+			$time_created = Factory::getDate()->toSql();
 			$html[]       = '<input type="hidden" name="' . $this->name . '" value="' . $time_created . '" />';
 		}
 
@@ -50,8 +54,8 @@ protected function getInput()
 
 		if ($hidden == null || !$hidden)
 		{
-			$jdate       = new JDate($time_created);
-			$pretty_date = $jdate->format(JText::_('DATE_FORMAT_LC2'));
+			$jdate       = new Date($time_created);
+			$pretty_date = $jdate->format(Text::_('DATE_FORMAT_LC2'));
 			$html[]      = "<div>" . $pretty_date . "</div>";
 		}
 
diff --git a/tjreports/site/models/fields/timeupdated.php b/tjreports/site/models/fields/timeupdated.php
index ec3e421..42c9e07 100755
--- a/tjreports/site/models/fields/timeupdated.php
+++ b/tjreports/site/models/fields/timeupdated.php
@@ -8,6 +8,10 @@
  */
 
 defined('JPATH_BASE') or die;
+use Joomla\CMS\Form\FormField;
+use Joomla\CMS\Date\Date;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Factory;
 
 jimport('joomla.form.formfield');
 
@@ -16,7 +20,7 @@
  *
  * @since  1.6
  */
-class JFormFieldTimeupdated extends JFormField
+class FormFieldTimeupdated extends FormField
 {
 	/**
 	 * The form field type.
@@ -49,13 +53,13 @@ protected function getInput()
 			}
 			else
 			{
-				$jdate       = new JDate($old_time_updated);
-				$pretty_date = $jdate->format(JText::_('DATE_FORMAT_LC2'));
+				$jdate       = new Date($old_time_updated);
+				$pretty_date = $jdate->format(Text::_('DATE_FORMAT_LC2'));
 				$html[]      = "<div>" . $pretty_date . "</div>";
 			}
 		}
 
-		$time_updated = JFactory::getDate()->toSql();
+		$time_updated = Factory::getDate()->toSql();
 		$html[]       = '<input type="hidden" name="' . $this->name . '" value="' . $time_updated . '" />';
 
 		return implode($html);
diff --git a/tjreports/site/models/report.php b/tjreports/site/models/report.php
index 76fb57e..8ac6498 100644
--- a/tjreports/site/models/report.php
+++ b/tjreports/site/models/report.php
@@ -8,13 +8,17 @@
 
 // No direct access.
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Model\AdminModel;
+use Joomla\CMS\Table\Table;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Plugin\PluginHelper;
 
 /**
  * Tmt model.
  *
  * @since  1.0
  */
-class  TjreportsModelReport extends JModelAdmin
+class  TjreportsModelReport extends AdminModel
 {
 	/**
 	 * Method to get a table object, load it if necessary.
@@ -30,7 +34,7 @@ class  TjreportsModelReport extends JModelAdmin
 
 	public function getTable($type = 'Tjreport', $prefix = 'TjreportsTable', $config = array())
 	{
-		return JTable::getInstance($type, $prefix, $config);
+		return Table::getInstance($type, $prefix, $config);
 	}
 
 	/**
@@ -73,7 +77,7 @@ public function getForm($data = array(), $loadData = true)
 	protected function loadFormData()
 	{
 		// Check the session for previously entered form data.
-		$data = JFactory::getApplication()->getUserState(
+		$data = Factory::getApplication()->getUserState(
 			'com_tjreports.edit.tjreports.data',
 			array()
 		);
@@ -97,20 +101,19 @@ protected function loadFormData()
 	 */
 	public function delete(&$pks)
 	{
-		$db    = JFactory::getDBO();
-		JTable::addIncludePath(JPATH_ROOT . '/administrator/components/com_tjreports/tables');
-		$tjrTable = JTable::getInstance('Tjreport', 'TjreportsTable', array('dbo', $db));
+		$db    = Factory::getDBO();
+		Table::addIncludePath(JPATH_ROOT . '/administrator/components/com_tjreports/tables');
+		$tjrTable = Table::getInstance('Tjreport', 'TjreportsTable', array('dbo', $db));
 		$tjrTable->load(array('id' => &$pks));
 		$data = $tjrTable;
 
-		if ($tjrTable->userid == JFactory::getUser()->id)
+		if ($tjrTable->userid == Factory::getUser()->id)
 		{
 			$tjrTable->delete($pks);
 
-			$dispatcher = JEventDispatcher::getInstance();
-			$extension = JFactory::getApplication()->input->get('option');
-			JPluginHelper::importPlugin('tjreports');
-			$dispatcher->trigger('tjReportsOnAfterReportDelete', array($extension, $data));
+			$extension = Factory::getApplication()->input->get('option');
+			PluginHelper::importPlugin('tjreports');
+			Factory::getApplication()->triggerEvent('tjReportsOnAfterReportDelete', array($extension, $data));
 
 			return true;
 		}
diff --git a/tjreports/site/models/reports.php b/tjreports/site/models/reports.php
index 7a89076..2dd0b53 100755
--- a/tjreports/site/models/reports.php
+++ b/tjreports/site/models/reports.php
@@ -9,8 +9,8 @@
 
 // No direct access
 defined('_JEXEC') or die('Restricted access');
-
 use Joomla\CMS\Factory;
+
 use Joomla\CMS\Date\Date;
 use Joomla\CMS\Table\Table;
 Use Joomla\Registry\Registry;
@@ -1609,7 +1609,7 @@ protected function getUserGroups($userId)
 			return array();
 		}
 
-		$db = JFactory::getDbo();
+		$db = Factory::getDbo();
 		$query = $db->getQuery(true);
 
 		// Get the titles for the user groups.
diff --git a/tjreports/site/router1.php b/tjreports/site/router1.php
index 0847307..73faa59 100755
--- a/tjreports/site/router1.php
+++ b/tjreports/site/router1.php
@@ -9,6 +9,7 @@
  */
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\Component\Router\RouterBase;
 
 JLoader::registerPrefix('Tjreports', JPATH_SITE . '/components/com_tjreports/');
 
@@ -17,7 +18,7 @@
  *
  * @since  3.3
  */
-class TjreportsRouter extends JComponentRouterBase
+class TjreportsRouter extends RouterBase
 {
 	/**
 	 * Build method for URLs
diff --git a/tjreports/site/tjreports.php b/tjreports/site/tjreports.php
index 209c524..f712354 100755
--- a/tjreports/site/tjreports.php
+++ b/tjreports/site/tjreports.php
@@ -9,6 +9,8 @@
 
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\Controller\BaseController;
+use Joomla\CMS\Factory;
 
 if (!defined('DS'))
 {
@@ -32,6 +34,6 @@
 
 JLoader::registerPrefix('tjreports', JPATH_COMPONENT);
 
-$controller = JControllerLegacy::getInstance('tjreports');
-$controller->execute(JFactory::getApplication()->input->get('task'));
+$controller = BaseController::getInstance('tjreports');
+$controller->execute(Factory::getApplication()->input->get('task'));
 $controller->redirect();
diff --git a/tjreports/site/views/reports/tmpl/default.php b/tjreports/site/views/reports/tmpl/default.php
index 826fb35..8891709 100644
--- a/tjreports/site/views/reports/tmpl/default.php
+++ b/tjreports/site/views/reports/tmpl/default.php
@@ -9,6 +9,7 @@
 
 // no direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\Plugin\PluginHelper;
 
 Use Joomla\CMS\Uri\Uri;
 use Joomla\CMS\Factory;
@@ -561,7 +562,7 @@
 <!-- reports-container -->
 <?php
 // If plg_system_sendemail enable then load following js
-if ($emailColumCnt > 0 && JPluginHelper::isEnabled('system', 'tjsendemail'))
+if ($emailColumCnt > 0 && PluginHelper::isEnabled('system', 'tjsendemail'))
 {
 	HTMLHelper::script('media/editors/tinymce/tinymce.min.js');
 	HTMLHelper::script('plugins/system/tjsendemail/assets/bulksendemail.min.js');
diff --git a/tjreports/site/views/reports/tmpl/default_filters.php b/tjreports/site/views/reports/tmpl/default_filters.php
index bb41736..e04dbe9 100644
--- a/tjreports/site/views/reports/tmpl/default_filters.php
+++ b/tjreports/site/views/reports/tmpl/default_filters.php
@@ -9,6 +9,7 @@
 
 // no direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\HTML\HTMLHelper;
 
 $displayFilters = $this->filters;
 $filters = $this->filterValues;
@@ -44,7 +45,7 @@ class="input input-mini filter-input ' . $filterHide . '" ' .
 
 		if(isset($this->colKey))
 		{
-			$filterHtml .= JHtml::_('grid.sort', '', $this->colKey, $this->listDirn, $this->listOrder);
+			$filterHtml .= HTMLHelper::_('grid.sort', '', $this->colKey, $this->listDirn, $this->listOrder);
 		}
 	}
 	elseif($searchType == 'select' && isset($filter['select_options']))
@@ -54,7 +55,7 @@ class="input input-mini filter-input ' . $filterHide . '" ' .
 
 		$filterHtml = '<div class="input-group">';
 
-		$filterHtml .= JHtml::_('select.genericlist', $filter['select_options'], 'filters[' . $searchKey . ']',
+		$filterHtml .= HTMLHelper::_('select.genericlist', $filter['select_options'], 'filters[' . $searchKey . ']',
 					'class="filter-input ' . $filterHide . '" size="1" onchange="tjrContentUI.report.submitTJRData();"',
 					$svalue, $stext, $searchValue);
 
@@ -73,7 +74,7 @@ class="input input-mini filter-input ' . $filterHide . '" ' .
 
 		if(isset($this->colKey))
 		{
-			$filterHtml .= JHtml::_('grid.sort', '', $this->colKey, $this->listDirn, $this->listOrder);
+			$filterHtml .= HTMLHelper::_('grid.sort', '', $this->colKey, $this->listDirn, $this->listOrder);
 		}
 	}
 	elseif($searchType == 'date.range' || $searchType == 'calendar')
@@ -123,7 +124,7 @@ class="input input-mini filter-input ' . $filterHide . '" ' .
 			}
 
 			$filterHtml  .= '<div class="filter-search controls custom-group input-group">'
-				. JHtml::_('calendar', htmlspecialchars($searchValue), 'filters['. $fieldKey . ']', 'filters_' . $fieldKey , $dateFormat, $fieldAttr);
+				. HTMLHelper::_('calendar', htmlspecialchars($searchValue), 'filters['. $fieldKey . ']', 'filters_' . $fieldKey , $dateFormat, $fieldAttr);
 
 			if ($this->filterLevel == 1)
 			{
@@ -140,7 +141,7 @@ class="input input-mini filter-input ' . $filterHide . '" ' .
 
 			if(isset($this->colKey))
 			{
-				$filterHtml .= JHtml::_('grid.sort', '', $this->colKey, $this->listDirn, $this->listOrder);
+				$filterHtml .= HTMLHelper::_('grid.sort', '', $this->colKey, $this->listDirn, $this->listOrder);
 			}
 		}
 	}
diff --git a/tjreports/site/views/reports/view.base.php b/tjreports/site/views/reports/view.base.php
index ca455f4..1592182 100644
--- a/tjreports/site/views/reports/view.base.php
+++ b/tjreports/site/views/reports/view.base.php
@@ -12,6 +12,7 @@
 
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\MVC\View\HtmlView;
 
 Use Joomla\CMS\Uri\Uri;
 use Joomla\CMS\Factory;
@@ -31,7 +32,7 @@
  *
  * @since  1.0.0
  */
-class ReportsViewBase extends JViewLegacy
+class ReportsViewBase extends HtmlView
 {
 	protected $items;
 
diff --git a/tjreports/site/views/reports/view.csv.php b/tjreports/site/views/reports/view.csv.php
index ee81654..97a13db 100644
--- a/tjreports/site/views/reports/view.csv.php
+++ b/tjreports/site/views/reports/view.csv.php
@@ -11,6 +11,10 @@
  */
 // No direct access
 defined('_JEXEC') or die('Restricted access');
+use Joomla\CMS\Factory;
+use Joomla\CMS\Router\Route;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\MVC\Model\BaseDatabaseModel;
 jimport('joomla.application.component.view');
 jimport('techjoomla.view.csv');
 JLoader::import('components.com_tjreports.helpers.tjreports', JPATH_ADMINISTRATOR);
@@ -42,8 +46,8 @@ class TjreportsViewReports extends TjExportCsv
 	 */
 	public function display($tpl = null)
 	{
-		$input = JFactory::getApplication()->input;
-		$user  = JFactory::getUser();
+		$input = Factory::getApplication()->input;
+		$user  = Factory::getUser();
 		$canDo = TjreportsHelper::getActions();
 		$reportId = $input->post->get('reportId');
 		$userAuthorisedExport = $user->authorise('core.export', 'com_tjreports.tjreport.' . $reportId);
@@ -51,8 +55,9 @@ public function display($tpl = null)
 		if (!$canDo->get('core.export') || !$user)
 		{
 			// Redirect to the list screen.
-			$redirect = JRoute::_('index.php?option=com_tjreports&view=reports', false);
-			JFactory::getApplication()->redirect($redirect, JText::_('JERROR_ALERTNOAUTHOR'));
+			$redirect = Route::_('index.php?option=com_tjreports&view=reports', false);
+			Factory::getApplication()->enqueueMessage(Text::_('JERROR_ALERTNOAUTHOR'), 'error');
+			Factory::getApplication()->redirect($redirect);
 
 			return false;
 		}
@@ -62,7 +67,7 @@ public function display($tpl = null)
 			{
 				$fileName = $input->get('file_name');
 				$this->download($fileName);
-				JFactory::getApplication()->close();
+				Factory::getApplication()->close();
 			}
 			else
 			{
@@ -74,7 +79,7 @@ public function display($tpl = null)
 				}
 				else
 				{
-					JFactory::getApplication()->enqueueMessage(JText::_('JERROR_ALERTNOAUTHOR'), 'error');
+					Factory::getApplication()->enqueueMessage(Text::_('JERROR_ALERTNOAUTHOR'), 'error');
 
 					return false;
 				}
@@ -93,7 +98,7 @@ private function getItems()
 	{
 		JLoader::import('components.com_reports.models.reports', JPATH_SITE);
 		$reportModel = new TjreportsModelReports;
-		$input = JFactory::getApplication()->input;
+		$input = Factory::getApplication()->input;
 		$this->limitStart = $input->get('limitstart');
 		$this->limit = $reportModel->getState('list.limit');
 		$reportId = $input->post->get('reportId');
@@ -101,8 +106,8 @@ private function getItems()
 		$reportData = $reportModel->getReportNameById($reportId);
 		$pluginName = $reportData->plugin;
 
-		JModelLegacy::addIncludePath(JPATH_SITE . '/plugins/tjreports/' . $pluginName);
-		$model = JModelLegacy::getInstance($pluginName, 'TjreportsModel');
+		BaseDatabaseModel::addIncludePath(JPATH_SITE . '/plugins/tjreports/' . $pluginName);
+		$model = BaseDatabaseModel::getInstance($pluginName, 'TjreportsModel');
 
 		$model->loadLanguage($pluginName);
 
@@ -136,7 +141,7 @@ private function getItems()
 						$subTextTitle = $columns[$subKey]['title'];
 					}
 
-					$colTitleArray[] = $contentTitle . ' ' . JText::sprintf($subTextTitle, $contentTitle, $contentId);
+					$colTitleArray[] = $contentTitle . ' ' . Text::sprintf($subTextTitle, $contentTitle, $contentId);
 				}
 			}
 			else
@@ -152,7 +157,7 @@ private function getItems()
 					$colTitle = $columns[$colKey]['title'];
 				}
 
-				$colTitleArray[] = JText::_($colTitle);
+				$colTitleArray[] = Text::_($colTitle);
 			}
 		}
 
diff --git a/tjreports/site/views/reports/view.html.php b/tjreports/site/views/reports/view.html.php
index de2dec5..0784855 100755
--- a/tjreports/site/views/reports/view.html.php
+++ b/tjreports/site/views/reports/view.html.php
@@ -12,11 +12,11 @@
 
 // No direct access
 defined('_JEXEC') or die;
+use Joomla\CMS\HTML\HTMLHelper;
 
 Use Joomla\CMS\Uri\Uri;
 use Joomla\CMS\Factory;
 use Joomla\CMS\Language\Text;
-use Joomla\CMS\HTML\HTMLHelper;
 use Joomla\CMS\Component\ComponentHelper;
 
 require_once __DIR__ . '/view.base.php';
@@ -68,7 +68,7 @@ protected function addToolbar()
 		$bar                  = JToolBar::getInstance('toolbar');
 		$canDo                = TjreportsHelper::getActions();
 
-		if ($app->isAdmin())
+		if ($app->isClient('administrator'))
 		{
 			$title = Text::_('COM_TJREPORTS_TITLE_REPORT');
 
@@ -128,7 +128,7 @@ protected function addToolbar()
 			JLoader::import('administrator.components.com_tjreports.helpers.tjreports', JPATH_SITE);
 			TjreportsHelper::addSubmenu('reports');
 
-			if ($app->isAdmin())
+			if ($app->isClient('administrator'))
 			{
 				$this->sidebar = JHtmlSidebar::render();
 			}
@@ -153,8 +153,8 @@ protected function addDocumentHeaderData()
 		$bootstrapSetting = $com_params->get('bootstrap_setting', 1);
 
 		if (($bootstrapSetting == 3)
-			|| ( $app->isAdmin() && $bootstrapSetting == 1 )
-			|| ( !$app->isAdmin() && $bootstrapSetting == 2 ) )
+			|| ( $app->isClient('administrator') && $bootstrapSetting == 1 )
+			|| ( !$app->isClient('administrator') && $bootstrapSetting == 2 ) )
 		{
 			HTMLHelper::stylesheet(Uri::root() . '/media/techjoomla_strapper/bs3/css/bootstrap.min.css');
 		}
@@ -172,7 +172,7 @@ protected function addDocumentHeaderData()
 
 			foreach ($plgScripts as $script)
 			{
-				$document->addScript($script);
+				HTMLHelper::_('script', $script);
 			}
 		}
 
@@ -182,7 +182,7 @@ protected function addDocumentHeaderData()
 
 			foreach ($styles as $style)
 			{
-				$document->addStylesheet($style);
+				HTMLHelper::_('stylesheet', $style);
 			}
 		}